Khan/khan-exercises — pull request #44649 by ifingerson (2013-04-14 18:19:36+00:00)
Title: Multiplying fractions by whole numbers, trello #555

I'm not sure if this is working correctly yet...

https://trello.com/card/multiplying-fractions-by-a-whole-number/4d87e664967a0775082939ab/555