math!

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

  • math! -

    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! -

    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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