Add and Subtract Fractions with Unlike Denominators

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 the denominator of a fraction represent?

Back

The denominator indicates how many equal parts the whole is divided into.

Front

What does the numerator of a fraction represent?

Back

The numerator shows how many parts of the whole are being considered.

Front

What is an unlike denominator?

Back

Unlike denominators are denominators that are not the same in two or more fractions.

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, first find a common denominator, convert the fractions, and then add the numerators.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions.

Front

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

Back

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

Front

Back

Front

Back

Front

When adding or subtracting fractions, what do you do with the denominators?

Back

You keep the denominators the same after finding a common denominator.