Adding Fractions

Front

What is a fraction?

Back

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

Tags

CCSS.3.NF.A.2B

CCSS.3.NF.A.1

Front

What does it mean to add fractions?

Back

Adding fractions means combining two or more fractions to find a total or sum.

Tags

CCSS.4.NF.B.3A

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, used to add or subtract them.

Tags

CCSS.5.NF.A.2

CCSS.5.NF.A.1

Front

How do you find a common denominator for 2/3 and 2/9?

Back

The least common multiple of 3 and 9 is 9, so the common denominator is 9.

Front

What is the sum of 2/3 and 2/9?

Back

8/9.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the first step in adding fractions with different denominators?

Back

Find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you convert 1/3 to have a denominator of 9?

Back

Multiply both the numerator and denominator by 3 to get 3/9.

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B

Front

What is the sum of 1/3 and 1/9?

Back

4/9.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 3/20 and 3/4?

Back

9/10.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you convert 3/4 to have a denominator of 20?

Back

Multiply both the numerator and denominator by 5 to get 15/20.

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B