Adding & Subtracting Fractions with unlike Denominators #2

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 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.

Front

How do you find a common denominator for 1/3 and 3/5?

Back

To find a common denominator, you can multiply the denominators together. For 1/3 and 3/5, the common denominator is 15.

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.

Front

Calculate: 3/5 + 1/3

Back

14/15

Front

Calculate: 2/5 + 1/3

Back

11/15

Front

What is the difference between two fractions?

Back

The difference between two fractions is found by subtracting the second fraction from the first.

Front

Calculate the difference: 1/2 - 1/4

Back

1/4

Front

Calculate: 7/12 - 3/8

Back

5/24

Front

What is the process to add fractions with unlike denominators?

Back

1. Find a common denominator. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Add the numerators and keep the common denominator.