SOLUTION: Find the common difference of this sequence 1/2, 1/3, 1/6, 0

You can put this solution on YOUR website!
The common difference is the difference between any two successive elements
of the sequence.
Two successive elements in your sequence are 1/6 and 0.
0-1/6 = -1/6
So the common difference is -1/6.
You would get the same result if you took the difference between
any pair in the sequance. Try it.
Cheers,
Stan H.