Khan/khan-exercises — Issue #12521: Adding fractions with common denominators - :( wrong
Author: KhanBugz
Created: 2012-01-31 03:27:06+00:00
State: open
Labels: leopard, safari, wrong-or-unclear

Reporter: harryproskate@yahoo.co.uk

SOLVE:
4/20 + 8/20 i put 12/20 and it said it was wrong!!!!!

[adding_fractions_with_common_denominators.html?seed=146&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_fractions_with_common_denominators.html?seed=146&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_fractions_with_common_denominators.html?seed=146&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%2212%2F20%5C%22%22%2C12%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2212%2F40%5C%22%22%2C19%5D%2C%5B%22correct-activity%22%2C%22%5C%2212%2F20%5C%22%22%2C14%5D%5D)

["12/20","12/20","12/40","12/20","12/20"]

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-us) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

MathJax is loaded, ready, queue length: 0