Fraction A Day - Fraction Multiplication

Today I revisited Fraction Multiplication adding controls to the Fraction Multiplication visualization to simplify modifying the fractions.  So that when you mouse over the fraction controls appear to allow you to modify the numerator and denominator.  I also played around with larger buttons to make it easier on touch screens, but that still needs some work.

I would also like to make it easier to facilitate comparisons, so kids can compare 2/4 x 2/4 with 1/2 x 1/2 etc.  The goal being to make the comparisons easy to make so they can focus on the fractions rather than the artifacts of making copies of fraction images.