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 have unlike denominators?

Back

Unlike denominators are when two or more fractions have different bottom numbers (denominators).

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 least common multiple (LCM)?

Back

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

Front

How do you add fractions with unlike denominators?

Back

1. Find a common denominator. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Add the numerators and keep the common denominator.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator are different.

Front

What is the process to convert 2/6 to an equivalent fraction with a denominator of 12?

Back

Multiply both the numerator and denominator by 2: 2/6 = (2*2)/(6*2) = 4/12.

Front

What is the sum of 2/6 + 1/2?

Back

5/6.

Front

Which of these numbers could NOT be a common denominator for 1/6 and 1/4: 12, 18, 24, 36?

Back

18.

Front

What is the sum of 4/8 + 1/3?

Back

20/24.