Posted by **joe** on Saturday, September 5, 2009 at 9:01pm.

what's the LCM of 9 and 15?

I got 9

is that the correct answer?

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**Ms. Sue**, Saturday, September 5, 2009 at 9:06pm
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

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**joe**, Saturday, September 5, 2009 at 9:48pm
45?

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**Ms. Sue**, Saturday, September 5, 2009 at 9:52pm
Right. 45 is the LCM of 9 and 15.

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