3
The LCM is 75.
150
150
Since 75 is a multiple of 5, it is automatically the LCM.
1575
The LCM is 45.
LCM of 15 9 and 18 is 90. The LCM of 9, 15 and 18 is 90.
The LCM is 45.
The LCM of 15, 9, 7 is 315.
It is 15
The LCM is 360.
The LCM of 5, 9, and 15 is 45.