1/3 + 1/2 - 5/6 + 1/5 + 1/4 - 9/20

KAUSHAL BHATT

In this question, if you notice, there are clearly two parts.

The first 3 elements can be written as 2/6 + 3/6 - 5/6 and 4/20 + 5/20 - 9/20.

If we add the first 3 and the last 3, we end up with 0. They all cancel each other.

Oct 16, 2015 • Comment