Before Sal can divide a mixed number, he has to rewrite it as an improper fraction. He explains that dividing a fraction is the same as multiplying it by its reciprocal and that you can "cancel out" numbers to make multiplying easier.

Teach the process of multiplying and dividing mixed numbers with a video lesson. The tutorial shows how to multiply and divide these fractions by first converting to improper fractions. After working through two multiplication...