Multiplying and Dividing Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. For example, (a/b) * (c/d) = (a*c)/(b*d).

Front

What is the product of 2/3 and 3/4?

Back

The product is 1/2.

Front

How do you divide fractions?

Back

To divide fractions, multiply by the reciprocal of the second fraction. For example, (a/b) ÷ (c/d) = (a/b) * (d/c).

Front

What is the reciprocal of 1/2?

Back

The reciprocal of 1/2 is 2/1 or simply 2.

Front

If you have 3/5 of a pizza and you want to divide it among 3 friends, how much does each friend get?

Back

Each friend gets 1/5 of the pizza.

Front

What is 2 ÷ 1/4?

Back

2 ÷ 1/4 = 8.

Front

Maddy has 2 cakes that she cuts into eighths. How many 1/8 size pieces does she have?

Back

She has 16 pieces.

Front

What is the product of 1/2 and 1/3?

Back

The product is 1/6.

Front

What is 3/4 ÷ 1/2?

Back

3/4 ÷ 1/2 = 3/2 or 1 1/2.