Adding and Subtracting Fractions with Unlike Denominators

Front

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

Back

Find a common denominator.

Front

How do you find a common denominator for 3/8 and 5/12?

Back

The least common multiple (LCM) of 8 and 12 is 24.

Front

What is the process to convert 3/8 to a fraction with a denominator of 24?

Back

Multiply the numerator and denominator by 3 to get 9/24.

Front

What is the process to convert 5/12 to a fraction with a denominator of 24?

Back

Multiply the numerator and denominator by 2 to get 10/24.

Front

After converting 3/8 and 5/12 to have a common denominator, what do you do next?

Back

Add the numerators: 9/24 + 10/24 = 19/24.

Front

What is an equivalent fraction?

Back

Fractions that represent the same value, such as 1/2 and 2/4.

Front

What is an improper fraction?

Back

A fraction where the numerator is larger than the denominator, like 5/4.

Front

What does the numerator in a fraction represent?

Back

The number of parts being considered.

Front

What does the denominator in a fraction represent?

Back

The total number of equal parts in a whole.

Front

If Savannah brought a pie and Mrs. Bridgman ate 1/10 of it, how much of the pie is left after the boys ate half?

Back

4/10 of the pie is left.