Add and Subtract Fractions

Front

What must you have to add and subtract fractions?

Back

Common denominators are required to add and subtract fractions.

Front

2/5 + 3/10 = ?

Back

7/10

Front

8/9 - 1/3 = ?

Back

5/9

Front

1/3 + 5/12 = ?

Back

3/4

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

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 the numerator in a fraction?

Back

The numerator is the top number of a fraction, indicating how many parts are being considered.

Front

What is the denominator in a fraction?

Back

The denominator is the bottom number of a fraction, indicating the total number of equal parts in a whole.

Front

How do you find a common denominator for two fractions?

Back

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

Front

What is the first step in adding fractions with different denominators?

Back

The first step is to find a common denominator.