PSLEFind the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- LCM of 2 and 5
- LCM of 8 and 18
- LCM of 16 and 20
- LCM of 4, 6 and 8
(a)
Multiples of 2: 2, 4, 6, 8, 10
Multiples of 5: 5, 10
LCM of 2 and 5 =
10 (b)
Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72
Multiples of 18: 18, 36, 54, 72
LCM of 8 and 18 =
72 (c)
Multiples of 16: 16, 32, 48, 64, 80
Multiples of 20: 20, 40, 60, 80
LCM of 16 and 20 =
80 (d)
Multiples of 4: 4, 8, 12, 16, 20, 24
Multiples of 6: 6, 12, 18, 24
Multiples of 8: 8, 16, 24
LCM of 4, 6 and 8 =
24 Answer(s): 10, 72, 80, 24