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 combine 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) of 3 and 4?

Back

The LCM of 3 and 4 is 12.

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 1/3 and 1/4?

Back

7/12.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and denominator by their greatest common divisor (GCD).

Front

What is the GCD of 8 and 12?

Back

The GCD of 8 and 12 is 4.

Front

What is the result of adding 2/5 and 3/8?

Back

11/20.

Front

What is the first step in adding fractions?

Back

Find a common denominator.