Dividing Unit Fractions and Whole Numbers

Front

What is a unit fraction?

Back

A unit fraction is a fraction where the numerator is 1 and the denominator is a positive integer, such as 1/2, 1/3, or 1/4.

Front

How do you divide a whole number by a unit fraction?

Back

To divide a whole number by a unit fraction, multiply the whole number by the reciprocal of the unit fraction.

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 a unit fraction by a whole number?

Back

To divide a unit fraction by a whole number, multiply the unit fraction by the reciprocal of the whole number.

Front

What is 1/2 ÷ 4?

Back

1/2 ÷ 4 = 1/2 × 1/4 = 1/8.

Front

If you have 1/3 of a pizza and you want to share it with 2 friends, how much does each person get?

Back

Each person gets 1/3 ÷ 3 = 1/3 × 1/3 = 1/9 of the pizza.

Front

What is 1/4 ÷ 2?

Back

1/4 ÷ 2 = 1/4 × 1/2 = 1/8.

Front

How many 1/2 pound servings can you get from 3 pounds of meat?

Back

3 ÷ 1/2 = 3 × 2 = 6 servings.

Front

What is the result of 1/6 ÷ 3?

Back

1/6 ÷ 3 = 1/6 × 1/3 = 1/18.

Front

If you have 1/2 of a cake and you want to divide it among 4 people, how much does each person get?

Back

Each person gets 1/2 ÷ 4 = 1/2 × 1/4 = 1/8 of the cake.