# Fractions / Fraction Multiplication

Activity 10 of 15
This lesson uses interactive unit squares to explore the concept of fraction multiplication.

## Planning and Resources

Objectives
Students understand that the product of two fractions is the product of the numerator and the product of the denominator; in general, (a/b)x(c/d) = (ac/bd). They understand that multiplying any number by a fraction less than one creates a product less than the number; multiplying any number by a fraction greater than one produces a product greater than the number.

Vocabulary
commutative property of multiplication
reciprocal

Standard:

## Lesson Snapshot

#### Understanding

Students can think about the finding the product of two fractions as finding the area; where each multiplier represents the base or the height of a rectangle.

### What to look for

Be sure students understand that the whole number 2 would be represented by shading two of the unit squares and by the fraction (2/1).

### Sample Assessment

What is the product of (4/7) x (3/2)?