???

9^2  /  81^2   =   81/81^2  =  81^1 / 81^2  =  81 / ((81)(81)) = 1/81 

A student simplified the expression 9^2 over 81^2 as 1 over 8. Do you agree with this student? Explain. 

$\frac{9^2}{81^2}=(\frac{9}{81})^2=(\frac{1}{9})^2=\frac{1}{81}$

I do not agree with this student.

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