Khan/khan-exercises — Issue #5571: Adding and subtracting fractions - IT DOESN'T WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Author: KhanBugz
Created: 2011-11-04 15:35:17+00:00
State: open
Labels: firefox, win7

It tells you the answer is wrong when it's write, I know, because I did THE PROBLEM ON A CALCULATOR!!!!!!!!!!!!!

[adding_and_subtracting_fractions.html?seed=137&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_fractions.html?seed=137&problem=0&debug)

[]

Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

MathJax is loaded, ready, queue length: 0