Khan/khan-exercises — Issue #11824: Adding subtracting mixed numbers 0.5 - smplify
Author: KhanBugz
Created: 2012-01-22 15:30:45+00:00
State: open
Labels: hard, ie8, ie9, win7

Reporter: zainababuzaid12@yahoo.com

why do we have to smplify every problem? so it is least common or unlike denominator?

[adding_subtracting_mixed_numbers_0.5.html?seed=78&problem=two-numbers](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_subtracting_mixed_numbers_0.5.html?seed=78&problem=two-numbers&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_subtracting_mixed_numbers_0.5.html?seed=78&problem=two-numbers&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2210%5C%22%22%2C11%5D%5D)

["10"]

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