Khan/khan-exercises — Issue #14146: Pre-algebra challenge - wrong answer
Author: KhanBugz
Created: 2012-02-18 21:09:28+00:00
State: open
Labels: ie8, win7, wrong-or-unclear

(4/81)1/2 doesn't equal 2/9!!!!

[pre-algebra_challenge.html?seed=118&problem=14 (exponents_3)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=118&problem=14&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=118&problem=14&debug&activity=%5B%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22(4%2F81\)1%2F2%5C%22%22%2C43%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22(2%2F9\)2%5C%22%22%2C26%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22(2%2F9\)%5C%22%22%2C19%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22(2%2F9\)%5C%22%22%2C165%5D%5D)

["(4/81)1/2","(2/9)2","(2/9)","(2/9)"]

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