Add/Subtract Fractions w/Unlike Denominators

Front

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

Back

Find a common denominator for the fractions.

Front

How do you find a common denominator for two fractions?

Back

Identify the least common multiple (LCM) of the denominators.

Front

What is the least common multiple (LCM) of 8 and 3?

Back

24.

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 4/8 and 1/3 when expressed with a common denominator?

Back

The sum is 5/24.

Front

What is the process for subtracting fractions with unlike denominators?

Back

Find a common denominator, convert the fractions, and then subtract the numerators.

Front

What is the result of 3/7 - 2/6 when simplified?

Back

The result is 2/21.

Front

How do you simplify a fraction?

Back

Divide the numerator and denominator by their greatest common divisor (GCD).

Front

What is the GCD of 2 and 21?

Back

1.

Front

What is the result of 11/12 - 3/4?

Back

The result is 1/6.