Question

What is the pattern 2/5,4/5,6/5,8/5

Answer 1

it is +2/5
because 2/5 + 2/5 = 4/5
4/5 + 2/5 = 6/5
6/5 + 2/5 = 8/5

Answer 2

There's a difference in the numerator that is +2, and each demoninator is 5.