$$[\frac{2}{3}]^{-8}\times[\frac{1}{3}]$$
$\frac{2187}{256}=8.54296875$
$$\frac{6561}{256}\times \frac{1}{3}$$
$$\frac{2187}{256}$$
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$\frac{3 ^ {7}}{2 ^ {8}} = 8\frac{139}{256} = 8.54296875$
