Adding Similar Fractions

Front

What are similar fractions?

Back

Fractions that have the same denominator.

Front

How do you add similar fractions?

Back

Add the numerators and keep the same denominator.

Front

Example: Add 1/4 + 2/4.

Back

1/4 + 2/4 = (1+2)/4 = 3/4.

Front

What is the denominator in a fraction?

Back

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

Front

What is the numerator in a fraction?

Back

The top number of a fraction that indicates how many parts are being considered.

Front

Example: What is 3/5 + 1/5?

Back

3/5 + 1/5 = (3+1)/5 = 4/5.

Front

What happens if the denominators are different?

Back

You cannot add them directly; you must find a common denominator first.

Front

What is a common denominator?

Back

A common multiple of the denominators of two or more fractions.

Front

Example: Find a common denominator for 1/3 and 1/4.

Back

The common denominator is 12.

Front

How do you convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the necessary factor to reach the common denominator.