5, 6, 7, 8, 8, 8, 8, 8, ___ ?

Answer is '9'

Each number represents the first number found after the
decimal point when one number is divided by another.
The first number,
5 is for 1/2,
6 is for 2/3,
7 is for 3/4,
8 is for 4/5,
& so on.