Adding & Subtracting 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 in a fraction represent?

Back

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

Front

What does the numerator in 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 different from each other.

Front

What is a common denominator?

Back

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

Front

How do you find a common denominator for 1/6 and 1/2?

Back

The least common multiple of 6 and 2 is 6, so the common denominator is 6.

Front

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

Back

Find a common denominator for the fractions.

Front

Add 1/6 + 1/2. What is the answer?

Back

4/6.

Front

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

Back

Find a common denominator for the fractions.

Front

Subtract 9/10 - 3/4. What is the answer?

Back

3/20.