Mathematics Stories - HAPPY HARRY - was one of my more "radical" stories. Dividing Fractions and Simplifying Rational Expressions by division are tough for students at different levels of mathematics. I have always "inverted and multiplied" in my head. By the way, the proof of why we have to invert before we multiply (because you want to divide by 1, is too long to really explain, so we tell students ... ) That is the only "formal" algorithm that mathematicians know. Since I always did this in m