Adding and Subtracting 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.1

CCSS.3.NF.A.2B

Front

What do you need to do before adding or subtracting fractions?

Back

You must have a common denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add fractions with the same denominator?

Back

Add the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with the same denominator?

Back

Subtract the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, like 2 1/2.

Tags

CCSS.3.NF.A.3C

Front

Convert the mixed number 3 1/4 to an improper fraction.

Back

3 1/4 = 13/4.

Front

What is the first step in adding mixed numbers?

Back

Convert them to improper fractions.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of 3 8/9 + 2 8/9?

Back

6 7/9.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 4 2/6 - 2 5/6?

Back

1 3/6.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the result of 6 4/10 - 3 8/10?

Back

2 6/10.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D