PSLEFind the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- LCM of 6 and 8
- LCM of 2 and 20
- LCM of 15 and 20
- LCM of 2, 6 and 9
(a)
Multiples of 6: 6, 12, 18, 24
Multiples of 8: 8, 16, 24
LCM of 6 and 8 =
24 (b)
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Multiples of 20: 20
LCM of 2 and 20 =
20 (c)
Multiples of 15: 15, 30, 45, 60
Multiples of 20: 20, 40, 60
LCM of 15 and 20 =
60 (d)
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18
Multiples of 6: 6, 12, 18
Multiples of 9: 9, 18
LCM of 2, 6 and 9 =
18 Answer(s): 24, 20, 60, 18