bagi yang tau mohon dijawab beserta caranya...

jawab

1 - 1/3 = 2/3
1 - 1/4 = 3/4
1 - 1/5 = 4/5
1 - 1/6 = 5/6
..
1- 1/2015 = 2014/2015
1 -1/2016 = 2015/2016

(1-1/3)(1-1/4)(1-1/5)(1- 1/6)...(1 - 1/2015)(1 - 1/2016) = n - 2013/2016
(2/3)(3/4)(4/5)...(2014/2015)(2015/2016) = n - 2013/2016
2/2016  = n - 2013/2016
n = 2/2016 + 2013/2016
n = 2015/2016