Khan/khan-exercises — Issue #10139: Multiplying fractions - needs clear negative signs
Author: KhanBugz
Created: 2012-01-03 22:14:54+00:00
State: open
Labels: firefox, vista, wrong-or-unclear

Reporter: needs clear negative signs

needs clear negative signs

[multiplying_fractions.html?seed=140&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/multiplying_fractions.html?seed=140&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/multiplying_fractions.html?seed=140&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2240%2F81%5C%22%22%2C127%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2240%2F81%5C%22%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%5D)

["40/81","40/81"]

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.25) Gecko/20111212 Firefox/3.6.25

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