Add and Subtract Fractions

Front

What must you have to add and subtract fractions?

Back

Common denominators.

Front

1/4 + 5/8 = ?

Back

7/8

Front

Tim has a board that is 5/6 feet long. He painted 2/18 feet of his board last night. How much more does Tim have left to paint?

Back

13/18

Front

2 1/4 + 3 2/12 = ?

Back

5 5/12

Front

Subtract 9/20 - 1/4. Write the difference in simplest form.

Back

1/5

Front

What is a fraction?

Back

A fraction represents a part of a whole, expressed as a numerator over a denominator.

Front

What is a common denominator?

Back

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

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 fractions with different denominators?

Back

Find a common denominator.

Front

What is the sum of 1/2 and 1/3?

Back

5/6 (after finding a common denominator of 6).