PSLEFind the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- LCM of 2 and 4
- LCM of 8 and 11
- LCM of 12 and 20
- LCM of 3, 7 and 9
(a)
Multiples of 2: 2, 4
Multiples of 4: 4
LCM of 2 and 4 =
4 (b)
Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88
Multiples of 11: 11, 22, 33, 44, 55, 66, 77, 88
LCM of 8 and 11 =
88 (c)
Multiples of 12: 12, 24, 36, 48, 60
Multiples of 20: 20, 40, 60
LCM of 12 and 20 =
60 (d)
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63
Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63
Multiples of 9: 9, 18, 27, 36, 45, 54, 63
LCM of 3, 7 and 9 =
63 Answer(s): 4, 88, 60, 63