Add/Subtract Fractions with Unlike Denominators Practice

Front

What is a fraction?

Back

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

Front

What does it mean to have unlike denominators?

Back

Unlike denominators are when the bottom numbers of two or more fractions are different, making it necessary to find a common denominator to add or subtract them.

Front

How do you find a common denominator for 1/5 and 1/8?

Back

To find a common denominator, you can multiply the denominators together. For 1/5 and 1/8, the common denominator is 40.

Front

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

Back

The first step is to find a common denominator for the fractions.

Front

What is the sum of 1/5 + 1/8?

Back

The sum is 13/40.

Front

How do you add 1/8 and 3/16?

Back

Convert 1/8 to 2/16 to have a common denominator, then add: 2/16 + 3/16 = 5/16.

Front

What is the sum of 2/5 + 3/10?

Back

The sum is 7/10.

Front

How do you add 5/10 and 8/5?

Back

Convert 5/10 to 1/2 and 8/5 to 16/10, then add: 1/2 + 16/10 = 2 1/10.

Front

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

Back

The sum is 9/10.

Front

What is simplification in fractions?

Back

Simplification is the process of reducing a fraction to its simplest form, where the numerator and denominator have no common factors other than 1.