Khan/khan-exercises — Issue #4021: Adding and subtracting fractions - correct answers being marked as incorrect 
Author: KhanBugz
Created: 2011-10-08 16:49:43+00:00
State: open
Labels: ie8, ie9, win7

Reporter: tmuschamp@gmail.com

Twice w/in adding and subtracting fractions, i have been told the answer provided was incorrect when it was correct. currect problem is 2/8+2/9=3/72 and the other problem was maker incorrect when i reduced the problem

[adding_and_subtracting_fractions.html?seed=93&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_fractions.html?seed=93&problem=0)

["43/72","34/72","34/72"]

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