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 reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator. For example, the reciprocal of 3/4 is 4/3.

Front

How do you divide fractions?

Back

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

Front

What is the product of 1/2 and 3/4?

Back

1/2 * 3/4 = 3/8.

Front

What is 6 ÷ 1/2?

Back

6 ÷ 1/2 = 6 * 2/1 = 12.

Front

If you have 3/5 of a pizza and you eat 1/5, how much is left?

Back

3/5 - 1/5 = 2/5 of the pizza is left.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

How many 2/3 ft pieces can be cut from a 9 ft ribbon?

Back

9 ÷ (2/3) = 9 * (3/2) = 13.5, so you can cut 13 pieces.

Front

What is the result of 4/9 ÷ 1/2?

Back

4/9 ÷ 1/2 = 4/9 * 2/1 = 8/9.