Question

2/3,4/7,__/__,11/21,16/31​

Answer 1

Answer:

7/13 is answer

Pattern

1/1, 2/3, 4/7, 7/13, 11/21, 16/31.

Numerator : in each case the pattern is (n+1) is added

Denominator : in each case the pattern is ( n+ 2) is added.