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, 7 ÷ 1/3 = 7 * 3 = 21.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is the quotient in division?

Back

The quotient is the result of dividing one number by another.

Tags

CCSS.3.OA.A.2

Front

What is the formula for dividing a fraction by a whole number?

Back

To divide a fraction by a whole number, multiply the denominator of the fraction by the whole number. For example, 1/4 ÷ 5 = 1/(4*5) = 1/20.

Front

If you have 1/2 of a pizza and share it with 5 friends, how much does each friend get?

Back

Each friend gets 1/10 of the pizza.

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 1/4 is the same as multiplying by 4.

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 1/3 is 3/1.

Front

How do you find the quotient of 3 ÷ 1/4?

Back

To find the quotient, multiply 3 by the reciprocal of 1/4, which is 4. So, 3 ÷ 1/4 = 3 * 4 = 12.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is the result of 4 ÷ 1/4?

Back

The result is 16, because 4 * 4 = 16.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is the relationship between division and multiplication?

Back

Division is the inverse operation of multiplication. If a * b = c, then c ÷ b = a.

Tags

CCSS.3.OA.C.7