# LCM Part 3

Taught by YourMathGal
• Currently 4.0/5 Stars.
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Part of video series
Meets NCTM Standards:
Lesson Summary:

In this video lesson, you will learn a quick and easy method to find the least common multiple (LCM) of two numbers. By listing the two numbers and identifying any common factors, you can then proceed to divide and multiply to find the LCM. This method is especially useful for two numbers, but can also be used for more than two numbers with additional steps. The LCM is important for adding and subtracting fractions, making this a valuable skill to master.

Lesson Description:

Least Common Multiple-shows a cool and easy way to find the LCM of two numbers.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

• How can you find the least common multiple of two numbers?
• What is an easy method for finding the LCM of 2 numbers?
• What is an easy way to find the LCM of 15 and 18?
• What is an upside down division method for finding the LCM of 2 numbers?
• How do you find the LCM of 24 and 30 using the upside down division method?
• How do you find the LCM of 35 and 63 using the upside down division method?
• How do you find the LCM of 18 and 42 using the upside down division method?
• How do you find the LCM of 9, 12, and 15 using the upside down division method?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson shows an upside down division method of finding common factors of two numbers and dividing both numbers by this common factor, and using these numbers to find the LCM of the two numbers. This is a very cool and easy method to find the LCM of two numbers. Several problems are shown and every step is explained.