Add & Subtract 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).

Front

What does it mean to have unlike denominators?

Back

Unlike denominators are when the bottom numbers of two or more fractions are different.

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, first find a common denominator, convert the fractions, and then add the numerators.

Front

How do you subtract fractions with unlike denominators?

Back

To subtract fractions with unlike denominators, find a common denominator, convert the fractions, and then subtract the numerators.

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions.

Front

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

Back

The first step is to find a common denominator.

Front

What is the result of 7/8 - 3/4?

Back

1/8

Front

What is the result of 1/3 + 1/9?

Back

4/9

Front

What is the result of 5/6 - 1/2?

Back

1/3 or 2/6

Front

What is the result of 9/10 - 2/5?

Back

1/2 or 5/10