It is never stupid to ask a genuine question. However, if you do not understand then it would be stupid to not ask.
\(x^{-y}=\frac{1}{x^y}\\ p^{-2}=\frac{1}{p^2}\\ etc\\ \text{that is what a negative power means}\\ so\\ (\frac{1}{3})^{3/5}\\ =(\frac{1}{3})^{0.6}\\ =\frac{1}{3^{0.6}}\\ =3^{-0.6}\)
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Think about how index laws work
\(x^3\div x^7=x^{3-7}=x^{-4}\\ but\\ x^3\div x^7=\frac{x^3}{x^7}=\frac{xxx}{xxxxxxx}=\frac{1}{x^4}\\ therefore\\ x^{-4}=\frac{1}{x^4}\\\)
By the way, your post was blanked out because you used the word 'stupid'
It was blanked out for me too but I have the power to unblank
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