Add/Subtract Fractions w/Unlike Denominators

Front

What is the process for adding fractions with unlike denominators?

Back

1. Find a common denominator for the fractions. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Add the numerators of the converted fractions. 4. Simplify the resulting fraction if possible.

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 of the fractions.

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 subtract fractions with unlike denominators?

Back

1. Find a common denominator for the fractions. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Subtract the numerators of the converted fractions. 4. Simplify the resulting fraction if possible.

Front

What is the first step in adding or subtracting fractions?

Back

The first step is to find a common denominator.

Front

What is the sum of 5/9 and 1/6?

Back

The sum is 13/18.

Front

What is 8/9 - 1/3?

Back

The result is 5/9.

Front

What is the sum of 2/6 and 2/8?

Back

The sum is 7/12.

Front

What is a proper fraction?

Back

A proper fraction is a fraction where the numerator is less than the denominator.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.