Adding Fractions with Unlike Denominators

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, allowing them to be added or compared.

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, list the multiples of each denominator and identify the smallest multiple that appears in both lists.

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

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) is the smallest multiple that two or more numbers share.

Front

How do you convert fractions to have a common denominator?

Back

To convert fractions to have a common denominator, multiply the numerator and denominator of each fraction by the necessary factor to reach the common denominator.

Front

What is the sum of 2/6 and 1/2?

Back

The sum of 2/6 and 1/2 is 5/6.

Front

What is the sum of 3/8 and 2/4?

Back

The sum of 3/8 and 2/4 is 7/8.

Front

How do you add mixed numbers?

Back

To add mixed numbers, first convert them to improper fractions, find a common denominator, add the fractions, and then convert back to a mixed number if necessary.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

Front

What is a proper fraction?

Back

A proper fraction is a fraction where the numerator is less than the denominator.