1,3/4,2/3,5/8,3/5,…… According to a certain rule, find the 100th number___

1,3/4,2/3,5/8,3/5,…… According to a certain rule, find the 100th number___

101/200
1=2/2 2/3=4/6 3/5=6/10
2/2,3/4,4/6,5/8 ,6/10
So the nth is n + 1 / 2n