Question

Find the LCM. (In each example, observe the numbers and see if you can find a rule to help you find the LCM.)

(1) 15, 30
(2) 48, 16
(3) 34, 102

Answer 1

(1) 15 and 30
30 is a multiple of 15. So, the lowest common multiple of 15 and 30 is 30.
∴ LCM = 30

(2) 48 and 16
48 is a multiple of 16. So, the lowest common multiple of 16 and 48 is 48.
∴ LCM = 48

(3) 34 and 102
102 is a multiple of 34. So, the lowest common multiple of 34 and 102 is 102.
∴ LCM = 102