$$(\frac{2}{3})^{-6}\times(\frac{3}{2})^{-4}$$
$\frac{9}{4}=2.25$
$$\frac{729}{64}\times \left(\frac{3}{2}\right)^{-4}$$
$$\frac{729}{64}\times \frac{16}{81}$$
$$\frac{9}{4}$$
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$\frac{3 ^ {2}}{2 ^ {2}} = 2\frac{1}{4} = 2.25$
