Adding and Subtracting Fun with Fractions for 3rd Graders

Front

What is a fraction?

Back

A fraction represents a part of a whole. It is written as two numbers separated by a slash, like 1/2.

Front

What does the numerator in a fraction represent?

Back

The numerator is the top number in a fraction. It shows how many parts we have.

Front

What does the denominator in a fraction represent?

Back

The denominator is the bottom number in a fraction. It shows how many equal parts the whole is divided into.

Front

How do you subtract fractions with the same denominator?

Back

To subtract fractions with the same denominator, subtract the numerators and keep the denominator the same.

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, add the numerators and keep the denominator the same.

Front

What is the first step to subtract fractions with different denominators?

Back

Find a common denominator for both fractions.

Front

What is the first step to add fractions with different denominators?

Back

Find a common denominator for both fractions.

Front

If you have 2/5 of a pie and eat 1/5, how much is left?

Back

1/5 of the pie is left.

Front

If a cake is cut into 8 pieces and 3 are eaten, how much is left?

Back

5/8 of the cake is left.

Front

If a recipe needs 3/5 of a cup of sugar and you use 1/5, how much is left?

Back

2/5 of a cup of sugar is left.