0
Anonymous
Factor them.
3 x 3 = 9
3 x 5 = 15
Combine the factors, eliminating duplicates.
3 x 3 x 5 = 45, the LCM
Wiki User
The LCM of 9 and 15 is 45.
The LCM is: 180
The LCM is: 45
The LCM is: 18
180
90
13
It is 36
36
The LCM is 18.
It is: 72