Convert feet-inches to decimal feet

Fancy specialty calculators may not be around on the job site, learn to convert in writing using a basic calculator.
To multiply 7`- 5 1/4" x 2` - 3 3/8", conversion to decimal feet is necessary.
By the end you will get why 7`- 5 1/4" = 7.1875 feet
Prerequisites: Must be proficient in reading a tape measure in inches and metric, + and - fractions, 4 ways to write division. Also learn to read an engineers` tape.
Steps: 1 Write up inches and fractions of an inch as 12-based fractions. 2 Convert the 12-based fractions into decimals. 3 Add all decimals to the feet amount.

[@MegaRiffraff]

Best explanation of this I have seen 👍🏻👍🏻

[@tonyalba2035]

Thank you so much for sharing, very helpful.

[@JessePazzi]

very very helpful thanks again.

[@irecycleable]

Very helpful!

[@fireite605]

Thank you!

[@apprenticemath]

Firesite You`re welcome, thanks for watching. Questions, ideas, suggestions also appreciated.

[@andrewfletcher2213]

Excellent videos sir. I would like to point out a potential mistake though. Probably just a mix up. 7'-5 1/4' in decimal feet is: 7.4368' In your comment description you have it listed as "By the end you will get why 7'-5 1/4" is: 7.1875'. I think you might have mixed up your in video example of 7'-2 1/4" with your in description example measurement. Just a thought :)

[@apprenticemath]

+Andrew Fletcher Good observation. No mix-up. By truncating the infinite decimal 0.4166666666666 ... to just 3 decimal places I arrived to a result of 7.431625. A more accurate result can be obtained by dividing by 12 only once instead of 2 times so infinite decimals are eliminated. Converting inches-fractions to decimal inches will do just that: 7'-5 1/4' = 7 + (5.25 ÷ 12) = 7.4375` Same story with 7'-2 1/4" = 7 + (2.25 ÷ 12) = 7.1875` Four decimal digits, no rounding needed.

[@andrewfletcher2213]

Ahhh okay. Thank you very much. Your videos have helped me understand some first year plumbing mathematics in which my teacher was available at the time to help me understand so thank you very much :)