Add/Subtract Fractions w/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 denominators of two or more fractions are different.

Front

How do you find a common denominator for fractions?

Back

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

Front

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

Back

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

Front

Subtract: 2/4 - 3/8. What is the answer?

Back

1/8

Front

Add: 2/6 + 2/8. What is the answer?

Back

7/12

Front

What is the process to add fractions with unlike denominators?

Back

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

Front

Subtract: 8/9 - 1/3. What is the answer?

Back

5/9

Front

Aden mixed 5/9 gallons of white paint and 1/6 gallons of blue paint. How many gallons was the mixture in all?

Back

13/18 gallons

Front

Which of these numbers could NOT be a common denominator for 1/3, 2/5, and 3/10?

Back

15