math
posted by shelly .
Needing help with these problems lost, subtract. simplify if possible 3/x9  3/ 9x, divide and simpliify 6/t divide 18/t, add. simplify is possible 5/z8 + 12/(z18)^2

I am not sure if I have the problems right. For what I think is the first question:
3/(x9)  3/(9x)
However, (9x) = 1(x9)
Therefore 3/(x9)  3/(9x) = 3/(x9) + 3/(x9) =
6/(x9)
I hope this helps. If not, please repost, clarifying your questions. Thanks for asking.