SOLUTION: 27^-2/3=1/9

Question 446626: 27^-2/3=1/9
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!

27^(-2/3) = 1/(27^(2/3))
The denominator 27^(2/3) is the cube root of 27^2.
27^2 = 729
The cube root of 729 is ???
Using the Google calculator: 729^(1/3) = 9
So,
27^(-2/3) = 1/9
Done.

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