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.1

CCSS.3.NF.A.2B

Front

What does it mean to add fractions with like denominators?

Back

When adding fractions with like denominators, you keep the denominator the same and add the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What does it mean to add fractions with unlike denominators?

Back

To add fractions with unlike denominators, you must first find a common denominator before adding the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find a common denominator?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What is the first step in adding fractions?

Back

The first step is to determine if the fractions have like or unlike denominators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

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

Back

1/4 + 1/4 = 2/4 = 1/2.

Tags

CCSS.4.NF.B.3A

Front

What is the sum of 1/3 and 1/6?

Back

1/3 + 1/6 = 2/6 + 1/6 = 3/6 = 1/2 after finding a common denominator.

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

Front

What is the sum of 2/5 and 1/5?

Back

2/5 + 1/5 = 3/5.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common factor (GCF).

Front

What is the sum of 2/12 and 2/6?

Back

2/12 + 2/6 = 2/12 + 4/12 = 6/12 = 1/2 after simplifying.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2