Dividing Unit Fractions by 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 unit fraction by a whole number?

Back

To divide a unit fraction by a whole number, multiply the denominator of the fraction by the whole number. For example, 1/4 ÷ 3 = 1/(4*3) = 1/12.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What is the result of dividing a fraction by a whole number?

Back

The result is a fraction where the numerator remains the same and the denominator is multiplied by the whole number.

Front

If you have 1/4 of a bag of cat food and you want to divide it among 9 cats, how do you calculate the amount each cat gets?

Back

You calculate it by dividing 1/4 by 9, which is 1/4 ÷ 9 = 1/(4*9) = 1/36.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What is the expression for dividing 1/4 liters of water into 5 glasses?

Back

The expression is 1/4 ÷ 5.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What is 1/6 ÷ 3?

Back

1/6 ÷ 3 = 1/(6*3) = 1/18.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What is the result of 1/2 ÷ 2?

Back

1/2 ÷ 2 = 1/(2*2) = 1/4.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What does it mean to divide a fraction?

Back

Dividing a fraction means finding out how many times the denominator can fit into the numerator, or how to distribute the fraction into equal parts.

Tags

CCSS.5.NF.B.3

Front

How can you visualize dividing a unit fraction by a whole number?

Back

You can visualize it by imagining splitting a whole into equal parts and then taking a fraction of those parts.

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Front

What is the relationship between division and multiplication in fractions?

Back

Dividing by a whole number is equivalent to multiplying by the reciprocal of that whole number.

Tags

CCSS.7.NS.A.2C