Khan/khan-exercises — Issue #14438: Arithmetic challenge -  
Author: KhanBugz
Created: 2012-02-22 21:10:28+00:00
State: open
Labels: firefox, hard, win7

hard

[arithmetic_challenge.html?seed=28&problem=2 (dividing_fractions)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/arithmetic_challenge.html?seed=28&problem=2&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/arithmetic_challenge.html?seed=28&problem=2&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%221%20%207%2F20%5C%22%22%2C39%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221%20-%207%2F20%5C%22%22%2C8%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221-7%2F20%5C%22%22%2C12%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221-7%2F20%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221-7%2F20%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221-7%2F20%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221-7%2F20%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221-7%2F20%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221-7%2F20%5C%22%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2217%2F10%5C%22%22%2C18%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2227%2F20%5C%22%22%2C25%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221%207%2F10%5C%22%22%2C15%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2227%2F20%5C%22%22%2C42%5D%5D)

["1 7/20","1 - 7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","1-7/20","17/10","27/20","1 7/10","27/20"]

Mozilla/5.0 (Windows NT 6.1; rv:5.0.1) Gecko/20100101 Firefox/5.0.1

MathJax is loaded, ready, queue length: 0