Adding & Subtracting 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 find a common denominator?

Back

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

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator are different.

Front

How do you 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.

Front

How do you subtract fractions with unlike denominators?

Back

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

Front

What is the first step in adding ⅘ + ½?

Back

Find a common denominator.

Front

If Jimmy has 1/2 and Carolyn has 5/6, how much more does Carolyn have?

Back

1/3 more water.

Front

What is the common denominator of 1/4 and 2/3?

Back

The common denominator is 12.

Front

How do you convert 1/2 to an equivalent fraction with a denominator of 10?

Back

Multiply both the numerator and denominator by 5 to get 5/10.