PSLEFind the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- LCM of 3 and 6
- LCM of 3 and 14
- LCM of 15 and 20
- LCM of 4, 5 and 8
(a)
Multiples of 3: 3, 6
Multiples of 6: 6
LCM of 3 and 6 =
6 (b)
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42
Multiples of 14: 14, 28, 42
LCM of 3 and 14 =
42 (c)
Multiples of 15: 15, 30, 45, 60
Multiples of 20: 20, 40, 60
LCM of 15 and 20 =
60 (d)
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40
Multiples of 8: 8, 16, 24, 32, 40
LCM of 4, 5 and 8 =
40 Answer(s): 6, 42, 60, 40