Khan/khan-exercises — Issue #9938: Adding fractions with common denominators - Adding fractions with common denominators
Author: KhanBugz
Created: 2011-12-31 10:56:12+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

The correct answer is deemed incorrect on this problem. 4/15 + 2/15 = 6/15

[adding_fractions_with_common_denominators.html?seed=24&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_fractions_with_common_denominators.html?seed=24&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_fractions_with_common_denominators.html?seed=24&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%226%2F15%5C%22%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C15%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C22%5D%2C%5B%22hint-activity%22%2C%220%22%2C25%5D%2C%5B%22correct-activity%22%2C%22%5C%226%2F15%5C%22%22%2C39%5D%2C%5B%22correct-activity%22%2C%22%5C%226%2F15%5C%22%22%2C23%5D%2C%5B%22correct-activity%22%2C%22%5C%226%2F15%5C%22%22%2C1%5D%2C%5B%22correct-activity%22%2C%22%5C%226%2F15%5C%22%22%2C3%5D%5D)

["6/15","6/15","6/15","6/15","6/15"]

Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.63 Safari/535.7

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