Khan/khan-exercises — Issue #13567: Adding and subtracting fractions - typing errors arn't wrong answers
Author: KhanBugz
Created: 2012-02-10 17:05:01+00:00
State: open
Labels: hard, ie8, ie9, vista

[adding_and_subtracting_fractions.html?seed=84&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_fractions.html?seed=84&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_fractions.html?seed=84&problem=0&debug&activity=%5B%5D)

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