Common Multiples and Common Denominators

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer. For example, the multiples of 3 are 3, 6, 9, 12, etc.

Front

What are common multiples?

Back

Common multiples are numbers that are multiples of two or more numbers. For example, the common multiples of 2 and 3 are 6, 12, 18, etc.

Front

What is the Least Common Multiple (LCM)?

Back

The Least Common Multiple (LCM) is the smallest multiple that two or more numbers share. For example, the LCM of 4 and 5 is 20.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and find the smallest number that appears in both lists.

Front

What is the LCM of 5 and 2?

Back

10

Front

What is the LCM of 4 and 7?

Back

28

Front

What is the LCM of 6 and 10?

Back

30

Front

List the first 4 multiples of 7.

Back

7, 14, 21, 28

Front

Which number is NOT a multiple of 4?

Back

18

Front

What is a denominator?

Back

A denominator is the bottom part of a fraction that shows how many equal parts the whole is divided into.