Compose and Decompose Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, in the fraction 1/2, 1 is the part and 2 is the whole.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to decompose a fraction?

Back

Decomposing a fraction means breaking it down into the sum of its unit fractions. For example, 3/4 can be decomposed into 1/4 + 1/4 + 1/4.

Tags

CCSS.4.NF.B.3A

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. For example, 1/3 and 1/5 are unit fractions.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

Front

How do you compose fractions?

Back

To compose fractions, you add unit fractions together. For example, to compose 2/3, you can add 1/3 + 1/3.

Tags

CCSS.4.NF.B.3A

Front

What is the sum of 1/4 + 1/4 + 1/4 + 1/4?

Back

The sum is 4/4, which equals 1.

Tags

CCSS.4.NF.B.3A

Front

If Kyleigh ate 1/5 of a cookie, how much did Noelle get if the cookie was whole?

Back

Noelle got 4/5 of the cookie.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is the mixed number for 11/4?

Back

The mixed number is 2 3/4.

Front

How can you express 3/4 using unit fractions?

Back

3/4 can be expressed as 1/4 + 1/4 + 1/4.

Tags

CCSS.4.NF.B.3B

Front

What is the result of decomposing 5/12 into unit fractions?

Back

5/12 can be decomposed into 1/12 + 1/12 + 1/12 + 1/12 + 1/12.

Tags

CCSS.4.NF.B.3B

Front

What is the equation for 2/6 + 2/6?

Back

The equation is 2/6 + 2/6 = 4/6.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D