Posted by **bailey** on Monday, December 10, 2007 at 3:05pm.

how do yuo do lcm i know i did it in like 1st grade but i need helpp!!

- math! -
**Ms. Sue**, Monday, December 10, 2007 at 3:07pm
Check this site.

http://www.helpwithfractions.com/least-common-multiple.html

If you do one of your own problems, we'll be glad to check it for you.

- math! -
**Zahra**, Wednesday, September 24, 2008 at 1:51pm
To find LCM you must list some of the multiples of the numbers and then find the ones that match which are the same.

eg: Find the LCM of 3 and 5

multiples of 3:3,6,9,12,15

multiples of 5:5,10,15,20,25

So,as you can see the LCM would be 15

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