We have changed our privacy policy. In addition, we use cookies on our website for various purposes. By continuing on our website, you consent to our use of cookies. You can learn about our practices by reading our privacy policy.
© 2016 Shmoop University, Inc. All rights reserved.
Basic Operations

Basic Operations

LCM & GCF Exercises

Example 1

Find the LCM of 25 and 15.

Example 2

Find the GCF of 84 and 126.

Example 3

Find the LCM of 30, 45, and 60.

Example 4

Find the GCF of 48, 24, and 60.

Example 5

You and your best friend are racing around a track. You run the track in 5 min, while friend runs it in 6 min. If you both start at the same time, how many laps will you have to run before you meet your friend back at the starting place (assuming you both run a consistent pace)?

Example 6

There are 20 girls and 16 boys in your class. Your teacher wants to make groups with a the same number of girls and boys in each group. How many students will be in each group?