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).

Front

What does it mean to add fractions?

Back

Adding fractions means combining two or more fractions to find a total or sum.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, used to add or subtract them.

Front

How do you find a common denominator for 2/3 and 2/9?

Back

The least common multiple of 3 and 9 is 9, so the common denominator is 9.

Front

What is the sum of 2/3 and 2/9?

Back

8/9.

Front

How do you add fractions with different denominators?

Back

Convert them to equivalent fractions with a common denominator, then add the numerators.

Front

What is the common denominator for 7/18 and 1/3?

Back

The common denominator is 18.

Front

What is the sum of 7/18 and 1/3?

Back

13/18.

Front

How do you convert 1/3 to have a denominator of 18?

Back

Multiply both the numerator and denominator by 6 to get 6/18.

Front

What is the sum of 1/8 and 11/16?

Back

13/16.