Introduction to ratios | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy

[@mikeg5232]

For anyone having trouble with this... I couldn't learn this when I was in middle and high school. I went onto college and found out I was capable of learning this stuff, just not in a standard classroom setting. I now have two degrees, one of which is a mechanical engineering degree. I found myself here because I wanted to brush up on some things for the military ASVAB test when I remembered how difficult this was when I was a kid. So please don't feel stupid if you're having difficulty learning this especially if its your first time. No one is above math.

[@sage3837]

Inspirational

[@dehydrated17yroldbitch77]

thank you very much i feel inspired now

[@slashvalkryie123yt8]

Thanks I feel a lot better about my test

[@ab-vq3yy]

:)

[@ANDREWL11456]

Thank you dude that’s inspirational

[@khanacademy]

Thanks. Don't know what happens in my brain sometimes!

[@mysterygirl7252]

Khan Academy I get ratio now thanks for your help

[@sugarpie822]

Thank you

[@isabel_bonilla6368]

Khan Academy good

[@angelgarcia1959]

Khan Academy

[@mohammadhuda3978]

Ahaha

[@bossalini2396]

What a great teacher. the examples are awesome. I'm 31 struggling with my math GED. I will definitely passed listening to this man. I've even found ways to simply to the problem without going through the full process

[@lolkillem13]

Ratio + I hope you passed

[@Bysgiysbugsuibgbgyu]

@@lolkillem13 Ratio

[@deepakbarii]

Youre 37 now

[@Demon_vv]

Online school when there is COVID-19 be like:

[@dungeondemonrbyt4354]

like sometimes messed up, but no school :)

[@dungeondemonrbyt4354]

.

[@raenc]

me the day of my big exam going back to things i learned 2 yrs ago 😭🤚🏻

[@nani.7151]

I would just prefer no online schools lol :)

[@notcynx-_-2766]

Bro I can’t do this shut up plz😂😂😂😭😭

[@bulbysaur248]

are we not going to talk about how neat he writes with a *mouse* like actually, wow.

[@shoki5271]

i dont think he's using the mouse lol

[@micha.abigail]

im pretty sure that hes using a drawing pad and recording it from his screen

[@micha.abigail]

NTF SQUAD 67 yeah that’s how you use a drawing board I have one .-. edit: PLS I CAME BACK TO THIS COMMENT WHY TF DID I PUT .-. ANYWAYS I PROMISE I DONT TALK LIKE THIS ANYMORE

[@sriramkomanduri]

@@micha.abigail, I was wondering how on earth does someone write so neat now I know

[@micha.abigail]

sriramkomanduri lol yeah 😂

[@big4headedGangster]

Twitter loves this one.

[@luisj_jr07]

ratio

[@civ3967]

fwluix07 L

[@Brynica]

Ratio

[@carmaela2689]

I haven't done ratios in 20 years. I was trying to help my daughter and the way her lesson explains ratios is impossible for me to understand and it wasn't jogging my memory. Your explanation was so, so easy to understand and helped us greatly. Thank you!

[@mathslogic7769]

😂😂😂

[@Razzspoons]

This ratio is impossible to explain though

[@pojestz]

ratio

[@tonyesq.8930]

@@Razzspoons W

[@ambergrzybowski6669]

I don't get this stuff in class, but when I come home and watch it from these videos I get it instantly. Thank you !

[@ratiogod9158]

Thank this ratio

[@kojo4680]

i hope i pass my test for tomorrow

[@kojo4680]

YaXD

[@humairajahangir9782]

Scrapapapap

[@deannaawad984]

Mistyqu I have a test tomorrow

[@jessrichardson6947]

Kojo SAME

[@mridulmadhvidhiman5334]

Yes

[@bushra2330]

Sal great explanation. Just one correction, at 3:59, ratio of dogs to horses is 1:2 not 1:5

[@BluTwob]

Right, I had to pause there, also. The ratio of dogs to horses 5:10 reduces to 1:2, 1 dog for every 2 horses.

[@waleedd857]

Ratio + you fell off + the hood watches brilliant now

[@ratiogod9158]

.

[@waleedd857]

@@ratiogod9158 L

[@kaytee627]

W then

[@lenispicker69]

@@waleedd857 L + fatherless + find a job

[@waleedd857]

@@lenispicker69 I’m actually looking for a job 😢

[@mizuchi999]

Ratio bozo

[@djpersley7651]

😂

[@Gavxxl]

😂

[@Xerxyn]

W

[@ilykysa]

Own that freak

[@ejsonmon]

Own that fraud teacher

[@haleweyahuissen9191]

Hey there but how did 5:10 changed into 1:5 shouldn't it be 1:2 ?

[@lerie_10]

yes

[@homesteadhousewife9964]

Yeah I’m pretty sure the only way to simplify it all the way is to divide both numbers by 5 not 2

[@Cassandra-pb3bo]

right! He said divide both by 5, 10 divided by 5 is 2 not 5.... so it's wrong and he made a mistake?

[@ktqt8544]

Thank you I thought I was going crazy lol

[@flower_chain7098]

Yes, I think he made a mistake

[@Mike-ev2eb]

3:27 should’ve been 2 Horses. Correct ratio should be 1:2 or There is 1 dog for every 2 horses.

[@ashutoshhiremath720]

Yeah that got me sorta confused lol

[@nicoleoda508]

@@ashwinmaradia3685 he said that wait let me check

[@ing.v97]

I noticed this too, thank you for pointing it out, Mike!

[@oskarAlfonsoSanchez]

This guys keeps doing mistakes, he needs to check his videos for errors before putting them on youtube. Thanks!

[@akalajamir6867]

Yes i was gonna tell that

[@aleks6900]

FINNALY A GOOD EXPLANATION MY TEACHER CANT TEACH SHIT

[@Itisheylel]

same here, man!

[@mrrainbow7349]

Kijewski calm down no need to cuss

[@manowasim2743]

cant say same about my teacher but i dont understand her she speaks too damn fast

[@muhyee294]

Kijewski

[@luuvdoses]

LOL

[@felipenewcomb906]

9:50 "Each group has three girls, each group has three girls. So, each group has three girls. Each group has three girls. SO how many girls are in each group? There are three girls." 😂

[@ayomideadesina4055]

Felipe Newcomb funny

[@charliewinter8678]

so true

[@ayomideadesina4055]

ikr😄😄😄

[@jessicahauserman9110]

Felipe Newcomb this will help me in exams I'm taking this year

[@peihu3201]

Felipe Newcomb he just wants to make sure that you understand, or he likes saying it more than one time.

[@charlottehuddy3]

His handwriting is amazing.

[@ratiogod9158]

This ratio is amazing.

[@antt9676]

But wouldn't the simplest form be 1:2 not 1:5?

[@moosakallu6966]

Ye hu dub

[@ramonjalmaani4837]

yes. it should be 1:2.

[@skyhawk_1266]

yeah, that would be correct

[@jalisaclarky]

Ahhh just the comment I was looking for thank you

[@david-yy6pk]

yes, the reciprocal ratio.. I believe it's a typing mistake. you are correct. 1:2 not 1:5

[@sage3837]

I haven’t done any math assignments LMFAO I NEED TO HURRY UP

[@speedycyclone3111]

.

[@unkown-_-personal267]

Bro i feel ya

[@mazzy850]

i love the fact that everyone in the comments has an anime pfp- smh stop watching anime and do your work

[@sage3837]

@@mazzy850 no

[@gambsy]

do u know what "LMFAO" means?

[@ericataney]

This was so helpful, thank you! I wish my siblings and I had been taught this way in elementary school, and I wish this method of teaching was the standard/expectation for all math teachers! I did notice the error with the dogs to horses ratio, but despite that, this video was GREAT!

[@ratiogod9158]

Thank this ratio

[@Qyo-rc5fl]

@@ratiogod9158 counter

[@fishslimeball3254]

@@Qyo-rc5flW

[@Thekingslayergames]

Sal I appreciate you taking the time out to do these videos. I'm relearning math, and getting more confident. Please do updates if you can when you make a mistake. That would be helpful in getting the logic of the math examples shown.

[@chomp_gd]

Ratio

[@glaciercodm4498]

12 year old comment .....

[@qbtcys4139]

@@glaciercodm4498 fr

[@nathanaellevi8320]

Didn't care + git gud at math + ratio

[@zeeshan3216]

AlHUMDULILAH SUBHANALLAH I UNDERSTOOD IT BY JUST WATCHING IT ONCE . SUBHANALLAH KHAN ACADEMY IS REALY VERY GOOD PLACE TO LEARN AND IT DOES NOT CONTAIN ANY PAID VIDEO SO ITS THE BEST LEARNING CHANNEL ON KZbin

[@manowasim2743]

thanks helped alot in my exam studies

[@parnaviyadgire5149]

ARRRMMMMMYYYYYYYYYY!!!! 💜

[@svt_lvr]

Army

[@EshuNaya]

ARMY

[@cyberdsd]

Army this ratio😭

[@Joomba_Juice]

These vids are really good I watched this not knowing a clue what ratios are and now I am a beast at it

[@HaloFallxx]

I wish he was MY math teacher. :c

[@mrrainbow7349]

M & G I really HIGHLY agree

[@maxwilliams4807]

me too, i have an exam tomorrow and we haven't learnt a thing about ratios in class but my teacher thinks we have bfs, this is causing so many arguments lmao

[@yikezamv7850]

Same

[@killerkittygaming4365]

halofall same..

[@azada876]

yes pls

[@NoTalking21]

you helped me pass a test thank you so much

[@alctraezali6776]

This comment is 4 years old hope you passed

[@Razzspoons]

@@alctraezali6776 pass this ratio

[@catgirlgamer101_9]

U made a mistake its 1: 2 not 1: 5

[@justbelowaverage0]

+CatGirlGamer101 _ he knows he even edited in a comment saying its 1:2 not 1:5

[@Bullfrog22]

nice pic

[@humairajahangir9782]

I know right

[@Who-Tf-Is-Travis]

You are right

[@njerimwangi2076]

well, man is to error...

[@katherinekasparov4366]

AGH WHAT I have my math test tmr and its like 50% of my grade and this guy just made me understand ratio in 14 minutes - if the guy who made this vid is watching, you have taught me more in less than 15 mins then my math teacher has taught me in 2 years THANK YOUUU 🙏

[@stickyfingersproductions6975]

Thank you Khan Academy! This helps me understand lots of math that confuses me. 😜👍🏻

[@ratiogod9158]

Thank this ratio

[@ivyguo4747]

This really helps me understand when I'm reviewing this after a year that I learned them! Thank you Khan Academy!!

[@lioudmilajoasil8951]

Lets see..... smart channel..... smart person.... shows how to do math vids, helps more than 4 or 5 millio..... OH wait 3 million subs. This channel deserves 5 million subs

[@andrewthenerd6830]

joseph bherso I think 10million

[@cahayatimothy2039]

Man yes....my teacher always don't believe me when im explaining who did.....IT.....she just cut it of

[@cahayatimothy2039]

You deserve to play asphalt 8 airborne

[@mimiraa1097]

khan academy doing school stuff or pewds doing Minecraft lol

[@ys1r]

it has 5 million now

[@zaynfilms9534]

Hello All The People Here For Homework

[@aydnn7170]

+Ashlyn Hemingway im here because my dad put me here >(

[@alybugz6574]

heeeeyy

[@HG-qu5pi]

+Brody LS same

[@cloggedplum5588]

Heyyyy

[@michaelabird45]

sup.

[@RafidAhsanAnan]

I'm a college student. Jesus.

[@5millionsubsnovideos932]

u dont say.

[@horse433]

I'm a college dropoutnow lol I'm reviewing right now but I took the assessment and got high school math. I watched all these videos to to calculus and I got into calculus when I retook the test

[@cloggedplum5588]

Is it bad for me to watch this when I'm in seventh grade?

[@sanawal7211]

+Clogged PLum of course not!

[@edsasmr7340]

+Clogged PLum same

[@nirvini-96]

ratio

[@AzyAaron]

THANK YOU! You've helped clear that up :D

[@pojestz]

ratio

[@ilyneemz]

woah. I'm in 9th grade now and tryna learn this, when I realize this video was uploaded in 2009. I was 4 o.O

[@Moonmoon-tl8js]

Naeema Garcia lol same, I’m hella confused but he showed me the easiest way. I want him as a teacher

[@des-eq7lf]

I was born in February 2008 so I wasn't even 1 years old when this was uploaded

[@jonathanvincent5348]

you learnt this in 9th grade? I learnt this in 5th. Struggles living in asia

[@Ia-dg1bg]

@@jonathanvincent5348 same but I don't live in asia

[@Mrpotscraper30]

Lol im in grade 9 too and im tryna learn this because i didnt pay attention in class

[@yikezamv7850]

Now i know how to do i was stuck when is the mid test Thanks

[@StilesXIVx]

this really helped thanks!

[@ANGELXZONE]

This is an amazing video, ratios are so simple. I wish teachers would explain it like this instead of over complicating the process.

[@ratiogod9158]

This is an amazing ratio

[@wishub]

@@ratiogod9158 counter ratio + L

[@frxkn6786]

@@wishub aired g

[@wishub]

@@frxkn6786 goku is stronger than naruto

[@frxkn6786]

@@wishub and?☠☠

[@maryna.angelpa]

Thank you Khan academy, I am getting more interested in math. I stumble upon your channel last week and I am happy to know that I can learn math. I didn't have time to learn this on school but now, I want to learn more. I'm so grateful to have this channel more power!

[@mathslogic7769]

😂

[@ejsonmon]

Ratio then

[@lenispicker69]

@@ejsonmon fatherless behavior

[@fishslimeball3254]

@@lenispicker69 don’t care + ratio

[@lenispicker69]

@@fishslimeball3254 accurate pfp of you

[@nooriiceda]

I miss the days when ratio was a math term

[@sabahatnazly]

0:26 Watch with 0.25x speed Thank you

[@ayomideadesina4055]

Amazing video teaches you a lot and learned a lot😃😃😃

[@bestsattips5245]

My channel!

[@noahroyal6295]

Thank you it help me a lot I have trouble with it

[@anastasiaanautodidact9856]

I wish khan academy would do ACT practice, topic-wise, like that of the SAT, because I'm literally plummeting and I don't have 1000 dollars to pay for for-profit educational organizations. I surely will be donating a lot to khan academy for their indelible efforts. What I like most about the khan academy practice questions is that they are topic-oriented and Don't seem to end. It would also be great if the programmers made a screen time restriction that you can freely adjust to prevent you from zoning out on your phone and kind of forcing you to finish the daily 120 questions. That would be a dream come true. I surely will be programming something like that for the ACT. It will be hard but worth it if it's going to help someone out of the trauma I'm going through rn, Being unable to find topic-oriented material.

[@luisj_jr07]

ratio

[@Staint12]

Sal, u have help me a lot in math!!!! thank u and great video by the way. XD

[@emeryrose5511]

studying for ISEE! so stressful, good luck on any test you have!

[@poodoglemon]

Omg that helped SOOO MUCH!!!😉

[@pandabear087]

Thank you sooooooo much i love khan academy!!!!!!!!!!!!!!!!!!!!!!!!!!:):):)

[@AkashKumar-xu9ys]

Very well

[@rickytu5316]

I agree

[@oz_man8y]

Ratio😳

[@avinashnc919]

all these other sites need money. this guy is ten times as good, and its free.

[@piner5231]

ratio + you fell off + didnt ask + dont care + spelling bee

[@jrexx2841]

Dang! That was crazy, but I don't remember asking + I'm still finding the person who cared + ratio

[@JMTBFLOW]

Thanks again.Keep up the great work!

[@bruhmoment6620]

RATIO

[@leiahsworld3672]

this helped me with homework

[@mrkuldeep8658]

Thanks for posting man❤️

[@zoumm1004]

Thanks this helped me so much I got an a plus!!!!!

[@tanasw0rld741]

Counter ratio

[@spoonsrattling4]

.

[@fariha2011]

Wonderful explanation ❤. This helped my kid a ton. Thank Khan Academy 🎉😊.

[@karanrathod9016]

i really really feel great watching this video he made it so simple I NEVER LIKED RATIOS but i am very confident fire a foundation GCSE question if you are dtuck when you come across one

[@ilhamanamazova1842]

I really enjoyed the best video i had ever seen

[@cyberdsd]

Enjoy this ratio

[@marisolmusignac1667]

Thx this help me with my homework and class

[@alicedeanhera898]

Z000

[@EatenChiken]

Sal , I love you, you make Me Pass on My Math x)

[@Shudikan90]

i learned more from this guy in 1 video than i would in 10 days of class.

[@Lumpify]

Learn from this Ratio

[@fishslimeball3254]

@@Lumpify W

[@Lumpify]

@@fishslimeball3254 no wya i forgot about this

[@ilykysa]

ratio + yb better im afraid

[@fishslimeball3254]

W

[@floturqe5067]

thank you Khan Academy, now i can ratio people more effectively on twitter.

[@floturqe5067]

waiting for the first person try to ratio me on my first comment

[@pakaru1638]

@@floturqe5067 ratio

[@VinoProduction192]

@@pakaru1638 + bozo

[@glacialvitality]

get ratio'd bozo

[@floturqe5067]

@@glacialvitality you're edgy bro ngl

[@thejacksonfivefan1]

in 20 minutes of siiting there with a teacher talking and i still need an explanation he taught me how to do it in about 10 minutes and i dont need an explanation thankyou khanacademy

[@rachelmcadamslover]

31 year old trying to take an lpn exam. God, I feel so dumb right now.

[@kytaylor3010]

rachelmcadamslover facts me to I’m trying to do CNA and take this darn test i failed it twice and have one more time

[@bellaofficial2957]

@@kytaylor3010 7th grader here doing online school :/

[@danielparvin9083]

Don’t think that at least you are trying and are committed

[@mrmagus4553]

You would be dumb if you didn't try to learn the subject. Stupidity is knowing you're ignorant, but doing nothing about it, while intellect is where you know you're unsure about a subject, but still try to accuire knowledge anyways. Whether the subject is complex, or basic, it's never dumb when you try to learn.

[@julianna6472]

I don’t even understand this type of math like lmao I feel so dumb

[@uhh...nasturtiium]

Currently learning advanced math (for my grade), it really helps! It's going to be competitive in other schools if I make it.

[@ilhamanamazova1842]

Is it necessary that you should divide with the smallest number first?

[@0214lechar]

I never learned this at school! Or maybe i wasn't listening. -.- Nevertheless, this lesson was amazing! :) Thanks, Khan. By the way, the online board was so clean. :) I like the change of colors.

[@ratiogod9158]

Learn this ratio

[@aleczanderchamberlain2041]

as usual going over these concept helps, thank you :-)

[@memeboi-255]

Same

[@wishub]

Go over this ratio

[@lenispicker69]

@@wishub this is like the 3rd video you comment ratio find a job

[@wishub]

@@lenispicker69 how about you go find a ratio

[@tonyesq.8930]

@@wishub W

[@wasifmahmudsahaf]

Best teacher so far 🙌🙌

[@FalconType]

Ratio then

[@all4honor]

Math has always been my Achilles heal. Now that I have time to myself and in my 40s I can sit down and finish this chapter during my freetime. I forgot how easy going your lectures and site is.

[@swissly6729]

5:44 So basically, if you have a two-digit number that is even and the second digit is zero, you take the number of which it is doubled from? So let's say 80. I technically have to use 4, correct?

[@memeboi-255]

Ye

[@kaus05]

Er no? Put 70 the common factor is 10 now but ig you already know by now so its for someone in the future

[@TheEk132]

@khanacademy i know this is random but how do you make your videos, do you use a special software to make those lessons.

[@carlamiu5060]

When you notice that he repeats almost everything at least twice it becomes a drinking game

[@betty6531]

That’s the best! My fav college professor(stats) has autism and repeated everything at least 4 times NEVER misses a step

[@unknownshadow4616]

It’s becuase he takes time to change the color and write so it ain’t his fault

[@marsflamesniper]

You ROCK SO HARD. Seriously. You're also a genius. And you have a nice voice.

[@kizaninternational1112]

Thanks it will help in my exam

[@ChristianNeoOritoYTCHANNEL]

yb mid + L

[@LordVader066]

.

[@theepicduckk96]

This was posted in 2009 and it is still useful. Thanks!

[@boy-sb4ef]

Possibly because basic maths doesn't change much

[@KaturahBrown1]

love these videos

[@thatoneguy2415]

Why it doesn't help that much at most will get a c- on a test by the way and I know this is a year old but still

[@humairajahangir9782]

Shut up

[@humairajahangir9782]

Katurah Baturah

[@abdullahalramadan8191]

Thank you for this video it helps me understand the concept of ratio

[@pojestz]

ratio

[@Xenomnipotent]

@@pojestz ice cold ratio 🥶

[@gambsy]

2007: bad quality good audio 2009: better quality same audio from 2007 but a little worse (no hate Khan Academy!

[@DJ-nomadlife]

Great way to explain thank you and by the way if you just prepare the question and write it down somewhere out of the screen before u start the video and paste later during the running time you save a lot of time .

[@pojestz]

ratio

[@Black_Strm]

THIS IS LIT IM TOTALLY GONNA PASS MY TEST

[@lanied57]

I love these videos. They help a lot. Keep making this. :)

[@brandonn4023]

Ratio+you fell off

[@Razzspoons]

@@brandonn4023 ratioed an 11 year old comment. W

[@tonyesq.8930]

@@brandonn4023 W + yb better

[@eddieking8981]

thank you soòòòoooooooooooooooooooooooo much it really helped

[@Pewabakes]

just a quick question, when you switched the ratio of dogs & Horses to 5:10 you said 5/5 =1 & 10/5 = 5 making the new ratio 1:5 is this correct? is 10/5 =5? or 2?

[@bryannajuarez1716]

This was a good explanation. I learned a good thing about ratios

[@Bullfrog22]

+B bry

[@asmashheader7829]

Thanks khan academy you have helped me a lot with my year 7 maths homework

[@Sadokiyo]

Thank this ratio😭

[@arreymarinusarrey9264]

Give thanks to God

[@dolanduck7645]

What does this have to do with god?

[@sou_desu8587]

Rougher Than Knuckles Tougher Than Knuckles that khan exists?

[@roysourboy3640]

Jas 911 Maybe, who knows?

[@redcoin2249]

Jas Brw I hate when people complain about everything...

[@crimsonknight5575]

God is everywhere, so why leave Him out or ignore Him or pretend He isn't there?God gave you that brain, so make Him proud by using it wisely.

[@shalinimalaviya5791]

Really helpful.. Thank you so much

[@JohnPaulBuce]

🐦: ratio 🤓:

[@meleika8274]

Thank you!!! Helped alot!!

[@gamewatch9967]

Not a real ratio + unfollowed + ratio

[@markasztalos9996]

counter ratio

[@theyoshibrothers3305]

@@markasztalos9996 L

[@MotivationalGrindingTruth]

so clear!!

[@ChristFollower0777]

FANTASTIC!!!

[@adilzamir8908]

Lol

[@fernandoarteaga4140]

Thanks really helped me out a lot. WHOOO!!!

[@_Donut]

thank you so much, i passed my exam because of this video. i cannot thank you enough

[@pojestz]

ratio