Would you like to know how to divide mixed numbers (numbers containing fractions) into one another in basic arithmetic? It's easy. Learn how with this free video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). See how to express mixed numbers as improper fractions, cancel and write reciprocals.