Question

If HCF (a, b)=12 and axb=1800, then find LCM (a, b).

Answer 1

we know that 

hcf×lcm=product of two no.
12×lcm=a×b
12×lcm=1800
lcm=1800/12
lcm=150

so the lcm is 150

Answer 2

HCF x LCM = product of two numbers
12 x LCM = a x b
12 x LCM = 1800
LCM = 1800/12
= 150
I HOPE IT HELPS YOU