Least Common Denominator

Front

What is a Least Common Denominator (LCD)?

Back

The Least Common Denominator (LCD) is the smallest number that can be a common denominator for two or more fractions.

Front

How do you find the Least Common Denominator of two fractions?

Back

To find the LCD, list the multiples of each denominator and find the smallest multiple that appears in both lists.

Front

What is the Least Common Denominator of 1/4 and 1/6?

Back

The LCD is 12.

Front

Which of the following is NOT a common denominator for 1/2 and 1/3: 6, 12, 18, 5?

Back

5 is NOT a common denominator.

Front

What is the Least Common Denominator of 2/5 and 3/10?

Back

The LCD is 10.

Front

If the denominators are 8 and 12, what is the Least Common Denominator?

Back

The LCD is 24.

Front

What is the Least Common Denominator of 3/4 and 1/2?

Back

The LCD is 4.

Front

Find the Least Common Denominator of 1/3, 1/4, and 1/6.

Back

The LCD is 12.

Front

What is the Least Common Denominator of 5/8 and 1/2?

Back

The LCD is 8.

Front

Which number is a common denominator for 2/3 and 3/4: 6, 8, 12, 10?

Back

6 is a common denominator.