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 2 and 18
- LCM of 15 and 18
- LCM of 2, 5 and 6
(a)
Multiples of 3: 3, 6
Multiples of 6: 6
LCM of 3 and 6 =
6 (b)
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18
Multiples of 18: 18
LCM of 2 and 18 =
18 (c)
Multiples of 15: 15, 30, 45, 60, 75, 90
Multiples of 18: 18, 36, 54, 72, 90
LCM of 15 and 18 =
90 (d)
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
Multiples of 5: 5, 10, 15, 20, 25, 30
Multiples of 6: 6, 12, 18, 24, 30
LCM of 2, 5 and 6 =
30 Answer(s): 6, 18, 90, 30