5/3 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 add fractions with unlike denominators?

Back

It means to add fractions that have different bottom numbers (denominators), requiring a common denominator to be found first.

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 two denominators.

Front

What is the least common multiple (LCM)?

Back

The least common multiple is the smallest number that is a multiple of two or more numbers.

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

If you have 1/4 and 1/5, what is the common denominator?

Back

The common denominator for 1/4 and 1/5 is 20.

Front

How do you convert fractions to have a common denominator?

Back

Multiply the numerator and denominator of each fraction by the necessary factor to reach the common denominator.

Front

What is 1/6 + 1/6?

Back

1/6 + 1/6 = 2/6 = 1/3.

Front

What is 1/5 + 1/2?

Back

1/5 + 1/2 = 7/10.

Front

What is 2/3 + 1/2?

Back

2/3 + 1/2 = 1 and 1/6.