Question

a and b are two positive integers, if a = pq and b = rs, then L.C.M. OF a and b be
pq
pqrs
rs
1

Answer 1

Answer:

Step-by-step explanation:

A. (p + q)/r. Not necessarily true. Consider r = 3, and p = q = 1.

B. (r + p)/q. Not necessarily true. Consider r = 6, and p = 2 and q=3.

C. p/q. Not necessarily true. Consider r = 6, and p = 2 and q=3.

D. pq/r. Not necessarily true. Consider r = 3, and p = q = 1.

E. r(p+q)pq=rp+rqpq=rppq+rqpq=rq+rp=integer+integer=integer.r(p+q)pq=rp+rqpq=rppq+rqpq=rq+rp=integer+integer=integer.