Add and Subtract Fractions

Front

What is a fraction?

Back

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

Front

What is the numerator in a fraction?

Back

The numerator is the top number in a fraction that indicates how many parts are being considered.

Front

What is the denominator in a fraction?

Back

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

Front

Can you add fractions with different denominators?

Back

No, you cannot add fractions with different denominators without first finding a common denominator.

Front

What is a common denominator?

Back

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

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 result of 1/4 + 1/4?

Back

1/4 + 1/4 = 2/4, which simplifies to 1/2.

Front

What is the result of 2/5 + 1/5?

Back

2/5 + 1/5 = 3/5.

Front

If you have 3/8 of a pizza and eat 2/8, how much is left?

Back

3/8 - 2/8 = 1/8 of the pizza is left.

Front

What is the result of 2/12 + 1/12 + 3/12 + 1/12 + 4/12?

Back

The result is 11/12.