Adding Fractions with Unlike Denominators Flashcard

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 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 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 common denominator for 5/6 and 1/2?

Back

The common denominator is 6.

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 the sum of 2/5 and 3/8?

Back

The sum is 31/40.

Front

What is the sum of 3/7 and 2/9?

Back

The sum is 23/63.

Front

What is the common denominator for 1/3 and 1/4?

Back

The common denominator is 12.

Front

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

Back

The first step is to find a common denominator.