PSLEFind the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- LCM of 3 and 5
- LCM of 2 and 18
- LCM of 15 and 18
- LCM of 3, 4 and 6
(a)
Multiples of 3: 3, 6, 9, 12, 15
Multiples of 5: 5, 10, 15
LCM of 3 and 5 =
15 (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 3: 3, 6, 9, 12
Multiples of 4: 4, 8, 12
Multiples of 6: 6, 12
LCM of 3, 4 and 6 =
12 Answer(s): 15, 18, 90, 12