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what's the LCM of 9 and 15?
I got 9
is that the correct answer?

  • math -

    No.

    Multiples of 9 are: 9, 18, 27, 36, 45, 54, 63

    Multiples of 15 are: 15, 30, 45, 60, 75

    What is the smallest number that is a multiple of both numbers?

    http://www.math.com/school/subject1/lessons/S1U3L3GL.html

  • math -

    45?

  • math -

    Right. 45 is the LCM of 9 and 15.

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