Adding 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 it mean to have unlike denominators in fractions?

Back

Unlike denominators are denominators that are not the same. To add or subtract fractions with unlike denominators, you must first find a common denominator.

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators of the fractions.

Front

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

Back

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

Front

How do you convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the same number so that both fractions have the common denominator.

Front

What is the formula for adding two fractions?

Back

The formula for adding two fractions a/b and c/d is: (a*d + b*c) / (b*d).

Front

What is the result of adding 2/5 and 1/4?

Back

The result is 13/20.

Front

What is the result of adding 4/5 and 1/10?

Back

The result is 9/10.

Front

What is the result of adding 1/2 and 2/5?

Back

The result is 9/10.

Front

What is the result of adding 1/3 and 1/4?

Back

The result is 7/12.