Adding and Subtracting Fractions With Different 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).

Front

What does it mean to have different denominators in fractions?

Back

Different denominators mean that the fractions represent parts of different-sized wholes, making it necessary to find a common denominator to add or subtract them.

Front

How do you find a common denominator for two fractions?

Back

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

Front

What is the first step in adding or subtracting fractions with different denominators?

Back

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

Front

How do you convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the necessary factor to make the denominators equal.

Front

What is the result of 8/9 - 5/6?

Back

1/18

Front

What is the result of 1/18 + 5/6?

Back

8/9

Front

What is the result of 2/6 + 1/2?

Back

5/6

Front

What is the result of 4/9 - 1/12?

Back

13/36

Front

What is the result of 7/15 - 1/5?

Back

4/15