SOLUTION: why does negative 1 as an exponent give you 1/5 or .5?

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Question 104557: why does negative 1 as an exponent give you 1/5 or .5?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-1 is an instruction.
It means "invert".
So 5^-1 = 1/5
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(2/3)^-1 = 3/2
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Cheers,
Stan H.