Khan/khan-exercises — pull request #11342 by MichalPokorny (2012-01-16 13:11:20+00:00)
Title: don't give equal numbers in Comparing improper fracs and mixed nums

Comparing improper fractions and mixed numbers gave equal numbers to compare, but didn't offer the right answer. The related issues are #11229, #11208, #11204, #11202, #11198, #11196. I added a data-ensure so this shouldn't happen anymore. (Plus there were some <>'s in the tags interpreted as JavaScript.)