Find the Least Common Denominator

Front

What is a common denominator?

Back

A common denominator is a number that can be used as a denominator for two or more fractions, allowing them to be compared or added together.

Front

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

Back

To find the least common denominator, 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

12

Front

Which of these numbers could NOT be a common denominator for 1/6 and 5/18? 6, 18, 36, 108

Back

6

Front

Find the lowest common denominator of these fractions: 2/7 and 2/21.

Back

21

Front

What is the least common denominator of 1/9 and 2/3?

Back

9

Front

Find the least common denominator of 1/6 and 5/12.

Back

12

Front

What is the least common multiple (LCM)?

Back

The least common multiple is the smallest multiple that two or more numbers share.

Front

How can you check if a number is a common denominator?

Back

You can check if a number is a common denominator by dividing each fraction's denominator by that number and ensuring the results are whole numbers.

Front

What is the least common denominator of 3/8 and 5/12?

Back

24