Adding 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).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add fractions?

Back

Adding fractions means combining two or more fractions to find a total. This often requires a common denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added together.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find a common denominator for 1/5 and 1/3?

Back

The least common multiple of 5 and 3 is 15, so the common denominator is 15.

Front

Convert 1/5 to a fraction with a denominator of 15.

Back

1/5 = 3/15.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

Convert 1/3 to a fraction with a denominator of 15.

Back

1/3 = 5/15.

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is 3/15 + 5/15?

Back

3/15 + 5/15 = 8/15.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the sum of 4/8 and 1/8?

Back

4/8 + 1/8 = 5/8.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

If you color in 2 more slices of a pizza that has 8 slices, what fraction is colored?

Back

If 3 out of 8 slices are colored, the fraction is 3/8.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is 1/2 + 5/10?

Back

1/2 + 5/10 = 1 (or 20/20).

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D