Adding and Subtracting Unlike Fractions

Front

To add or subtract, two fractions must have...

Back

common denominators.

Front

Simplify the fraction to lowest terms: 4/12

Back

1/3

Front

8/15 - 1/5 = ?

Back

1/3

Front

5/6 - 1/3 = ?

Back

1/2

Front

Calvin and some friends baked different kinds of pizza and cut them into different number of slices. They ate 1/4 of one pizza, 1/4 of another, 3/12 of another, and 1/12 of another. How much pizza did they eat? Simplify your answer.

Back

5/6 pizza

Front

What is a fraction?

Back

A fraction represents a part of a whole, consisting of a numerator (top number) and a denominator (bottom number).

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 1/3 and 1/4?

Back

The least common multiple (LCM) of 3 and 4 is 12, so the common denominator is 12.

Front

What is the first step in adding unlike fractions?

Back

Find a common denominator.

Front

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

Back

3/4