Since 9 divides 36, we dont need to worry about it
36 = 3^2 x 2^2
60 = 3 x 5 x 2^2
Choosing each different factor once along with the highest power on that factor, we have
2^2 x 3^2 x 5 =
4 x 9 x 5 =
36 x 5 =
180 ... and that's the LCM of all three numbers
