0
Wiki User
36
180
18
72
It is 36
LCD(9, 28) = 252
it equals 48
LCD(9, 21) = 63
lcd(2, 6, 12) = 12.
LCD(12, 9) = 36
It is 180 which is also the LCM
3
48
LCD(9, 3) = 9
The LCD of 20 and 9 is 180.