Add and Subtract Fractions with Unlike Denominators

Front

What is a fraction?

Back

Front

What is the numerator in a fraction?

Back

Front

What is the denominator in a fraction?

Back

Front

What does it mean to have unlike denominators?

Back

Front

How do you find the least common denominator (LCD) of two fractions?

Back

To find the least common denominator, list the multiples of each denominator and find the smallest multiple that they both share. For example, the LCD of 3 and 4 is 12.

Front

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

Back

The first step is to find the least common denominator (LCD) for the fractions.

Front

How do you convert fractions to have a common denominator?

Back

To convert fractions to have a common denominator, multiply the numerator and denominator of each fraction by the necessary factor to make the denominators equal.

Front

What is the process for subtracting fractions with unlike denominators?

Back

1. Find the least common denominator (LCD). 2. Convert each fraction to an equivalent fraction with the LCD. 3. Subtract the numerators and keep the common denominator.

Front

What is an example of adding fractions with unlike denominators?

Back

Front

What is an example of subtracting fractions with unlike denominators?

Back