Fractions: Finding the Common Denominator

Explains the fundamental concepts which form the basis for finding the common denominator. Tells the story of Greg, who stays after school to learn to solve problems involving fractions. An explanation to Greg includes a definition of the common denominator, how to add like and unlike fractions, and the procedures for finding the lowest common denominator. After Greg understands procedures for finding the lowest common denominator, he applies his knowledge to several practical problems.