Question

what should be added to (1 upon 2 +1 upon 3 + 1 upon 5 ) to get 2

Answer 1

Let's x to be added so

1/2 + 1/3 + 1/5 + x = 2

(15 + 10 + 6 + 30x) / 30 = 2

31 +30x = 60

30x = 60- 31 = 29

x = 29/30


So 29/30 needs to be added to get 2.


Thanks