add & subtract 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?

Back

Unlike denominators are denominators that are not the same in two or more fractions.

Front

How do you find a common denominator for fractions?

Back

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

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 first step in subtracting fractions with unlike denominators?

Back

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

Front

How do you convert a fraction to an equivalent fraction?

Back

Multiply or divide both the numerator and denominator by the same non-zero number.

Front

What is 2/3 equivalent to with a denominator of 6?

Back

2/3 is equivalent to 4/6.

Front

What is the sum of 1/4 and 1/2?

Back

1/4 + 1/2 = 3/4 (after finding a common denominator of 4).

Front

What is the difference between 5/4 and 1/4?

Back

5/4 - 1/4 = 4/4 = 1.

Front

What is the common denominator of 4 and 5?

Back

The common denominator of 4 and 5 is 20.