Dividing/Multiplying Fractions

Front

What is a fraction?

Back

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

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. For example, 1/2 * 3/4 = (1*3)/(2*4) = 3/8.

Tags

CCSS.5.NF.B.6

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 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 the first fraction by the reciprocal of the second fraction. For example, 1/2 ÷ 1/3 = 1/2 * 3/1 = 3/2.

Tags

CCSS.6.NS.A.1

Front

What is 5 divided by 1/5?

Back

5 divided by 1/5 equals 25, because 5 * 5/1 = 25.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

If you have 3/4 of a pizza and you want to share it with 3 friends, how much does each friend get?

Back

Each friend gets 1/4 of the pizza, because 3/4 ÷ 3 = 3/4 * 1/3 = 1/4.

Front

What is the result of 1/2 ÷ 2?

Back

1/2 ÷ 2 equals 1/4, because 1/2 * 1/2 = 1/4.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator and add the numerator. For example, 2 1/3 = (2*3 + 1)/3 = 7/3.

Front

What is 1/6 divided by 3?

Back

1/6 ÷ 3 equals 1/18, because 1/6 * 1/3 = 1/18.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C