Question

Let A be the set of positive integers that have no prime factors other than 2, 3 or 5. The infinite sum 1/1 + 1/2 + 1/3 + 1/4 + 1/5 + 1/6 + 1/8 + 1/9 + 1/10 + 1/12 + 1/15 + 1/16 + 1/18 + 1/20 ...... of the reciprocals of the elements of A can be expressed as m/n, where m and n are relatively prime positive integers. What is m + n?​

Answer 1

Answer:

marks my answer brianliest

Step-by-step explanation:

m(Infinite numbers )/ n( reciprocal of Infinite numbers

=> m/n bcoz all the reciprocals cancelled

Answer 2

19 is the answer. Find the solution in the attachment.

Visharika.