Question

how to find lcm of 7.5,6,5

Answer 1

The numbers are 15/2, 6 and 5

The LCM would be [LCM(15,6,5)/HCF(2,1,1)]

=30/1

=30

In short, the LCM of (a/p, b/q, c/r…) would be

LCM (a,b,c) / HCF (p,q,r)

and the HCF of the same set of numbers would be

HCF (a,b,c) / LCM (p,q,r)

Hope this helps :)