Adding and Subtracting Fractions with Unlike Denominators Flashcard

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.

Front

How do you find the least common denominator (LCD) of two fractions?

Back

To find the LCD, list the multiples of each denominator and find the smallest multiple that they have in common.

Front

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

Back

The first step is to find the least common denominator (LCD) for the fractions.

Front

Add the fractions 2/5 and 1/3.

Back

11/15

Front

What is the least common denominator for the fractions 1/3 and 2/5?

Back

15

Front

Add the fractions 1/2 and 3/8.

Back

7/8

Front

Convert the fractions 4/11 and 3/8 to like denominators.

Back

The like denominator for 4/11 and 3/8 is 88.

Front

Subtract the fractions 5/6 and 1/4.

Back

7/12

Front

What is the process to convert fractions to like denominators?

Back

Multiply each fraction by a form of 1 that will make the denominators the same.