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 have like denominators?

Back

Like denominators are when two or more fractions have the same denominator, making it easier to add or subtract them.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What does it mean to have unlike denominators?

Back

Unlike denominators are when two or more fractions have different denominators, requiring a common denominator to add or subtract them.

Tags

CCSS.7.NS.A.1C

Front

How do you add fractions with like denominators?

Back

Add the numerators together and keep the same denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you add fractions with unlike denominators?

Back

Find a common denominator, convert the fractions, then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions.

Front

What is the first step in adding fractions?

Back

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 2/5 and 1/5?

Back

3/5.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the sum of 1/4 and 1/2?

Back

3/4 (after finding a common denominator of 4).

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you simplify a fraction?

Back

Divide the numerator and the denominator by their greatest common factor.