PSLEFind the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- LCM of 5 and 9
- LCM of 6 and 11
- LCM of 12 and 15
- LCM of 3, 4 and 9
(a)
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45
Multiples of 9: 9, 18, 27, 36, 45
LCM of 5 and 9 =
45 (b)
Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66
Multiples of 11: 11, 22, 33, 44, 55, 66
LCM of 6 and 11 =
66 (c)
Multiples of 12: 12, 24, 36, 48, 60
Multiples of 15: 15, 30, 45, 60
LCM of 12 and 15 =
60 (d)
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36
Multiples of 9: 9, 18, 27, 36
LCM of 3, 4 and 9 =
36 Answer(s): 45, 66, 60, 36