Adding fractions with unlike denominators

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 unlike denominators?

Back

Unlike denominators are when the bottom numbers of two or more fractions are different, making it necessary to find a common denominator to add or subtract them.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find a common denominator for fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators of the fractions you want to add or subtract.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

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

Back

The first step is to find a common denominator for the fractions.

Tags

CCSS.7.NS.A.1C

Front

What is the second step in adding fractions with unlike denominators?

Back

The second step is to convert each fraction to an equivalent fraction with the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the third step in adding fractions with unlike denominators?

Back

The third step is to add the numerators of the equivalent fractions while keeping the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the final step after adding fractions?

Back

The final step is to simplify the resulting fraction if possible.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Example: 3/5 + 1/5 = ?

Back

4/5

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

Example: 5/6 + 2/6 = ?

Back

1 and 1/6

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

Example: 2/3 + 1/6 = ?

Back

5/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2