Question

What is the rule for the sequence 5/6,1 1/2,2 1/6,2 5/6

Answer 1

5/6 + 4/6 = 9/6. 
9/6 = 1 1/2 or 1 3/6.

9/6 + 4/6 = 13/6. 
13/6 = 2 1/6.

13/6 + 4/6 = 17/6
17/6 = 2 5/6.

The rule is to add 4/6.
4/6 simplified is 2/3.

Hope this helped, sorta! :-)

Answer 2

The rule is to add 4/6 and then you will have to simplify it which will be 2/3