Adding and Subtracting Fractions with Unlike Denominators

Front

What is a fraction?

Back

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

Front

What does the numerator in a fraction represent?

Back

The numerator is the top number of a fraction and shows how many parts we have.

Front

What does the denominator in a fraction represent?

Back

The denominator is the bottom number of a fraction and shows how many equal parts the whole is divided into.

Front

What is an unlike denominator?

Back

Unlike denominators are when two or more fractions have different bottom numbers.

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 number that is a 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

What is 4/6 + 3/5?

Back

1 8/30

Front

What is 4/5 - 2/3?

Back

2/15

Front

What is the sum of 12/24 and 3/8?

Back

21/24