SOLUTION: What is the multiplicative inverse of negative nine and how do I figure that out?

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Question 158920: What is the multiplicative inverse of negative nine and how do I figure that out?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Read this --> http://en.wikipedia.org/wiki/Reciprocal_(mathematics)
The multiplicative inverse is just 1%2Fx. In this case, x+=+-9
so
1%2F%28-9%29 = -1%2F9
Now to check, multiply %28-9%29+%2A+%28-1%2F9%29} Do you get 1? If so, you know you did it correctly