Adding Fractions Without a Common Denominator and Reducing

2 of 2 - See more at mathfour.com/?p...

[@Nasa_flies]

It's really useful for me.

[@navarroa.9171]

This is a little to complicated for a simple fraction like that.

[@joshuazucker]

Since bd is a common denominator, I don't really understand what you mean by "without a common denominator". I also don't understand how kids could make any meaning of your formula if they don't already have a deep understanding of common denominators.

[@TheBoondockgurl]

you lost me at the alphabets......