Dividing by unit and non-unit fractions

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

What is a non-unit fraction?

Back

A non-unit fraction is a fraction where the numerator is greater than 1, such as 2/3, 3/4, or 5/6.

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 denominator of the fraction. For example, 12 ÷ (1/3) = 12 x 3 = 36.

Front

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

Back

To divide a whole number by a non-unit fraction, multiply the whole number by the reciprocal of the fraction. For example, 12 ÷ (3/4) = 12 x (4/3) = 16.

Front

What is the reciprocal of a fraction?

Back

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

Front

How many 6s are in 12?

Back

2

Front

How many 4s are in 12?

Back

3

Front

How many 3s are in 12?

Back

4

Front

What does it mean to divide by a fraction?

Back

Dividing by a fraction means to find out how many times that fraction fits into the whole number.

Front

If you have 12 cookies and want to share them equally among 3 friends, how many cookies does each friend get?

Back

Each friend gets 4 cookies.