(a) 9 and 4
LCM = 2 × 2 × 3 × 3 = 36
(b) 12 and 5
LCM = 2 × 2 × 3 × 5 = 60
(c) 6 and 5
LCM = 2 × 3 × 5 = 30
d) 15 and 4
LCM = 2 × 2 × 3 × 5 = 60
Yes, it can be observed that in each case, the LCM of the given numbers is the product of these numbers.
When two numbers are co-prime, their LCM is the product of those numbers. Also, in each case, LCM is a multiple of 3.
