Divide 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.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

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, 6 ÷ 1/5 = 6 * 5 = 30.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is the result of 6 ÷ 1/5?

Back

30

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

Which equation has a quotient of 12? 1/2 ÷ 6, 1/4 ÷ 3, 3 ÷ 1/4, or 2 ÷ 1/5?

Back

3 ÷ 1/4 has a quotient of 12.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is 7 divided by 1/3?

Back

21

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is the result of 4 ÷ 1/4?

Back

16

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is 1/4 ÷ 5?

Back

1/20

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What does it mean to divide by a fraction?

Back

Dividing by a fraction is the same as multiplying by its reciprocal. For example, dividing by 1/2 is the same as multiplying by 2.

Front

What is the reciprocal of 1/4?

Back

The reciprocal of 1/4 is 4/1 or simply 4.

Front

If you have 10 and divide it by 1/2, what do you get?

Back

You get 20, because 10 ÷ 1/2 = 10 * 2.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C