Adding and Subtracting 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 have like denominators?

Back

Like denominators are when two or more fractions have the same denominator, allowing them to be added or subtracted directly.

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.

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 fractions with unlike denominators?

Back

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

Front

What is the process for subtracting fractions?

Back

1. Find a common denominator. 2. Convert the fractions to equivalent fractions with the common denominator. 3. Subtract the numerators and keep the common denominator.

Front

What is the result of 1/2 + 1/4?

Back

3/4

Front

What is the result of 3/5 - 1/5?

Back

2/5

Front

How do you convert 4/5 to a fraction with a denominator of 20?

Back

Multiply the numerator and denominator by 4 to get 16/20.

Front

What is the result of 8/9 - 1/3?

Back

5/9