$$(\frac{2}{3})^{-2}\times(\frac{2}{3})^{4}$$
$\frac{4}{9}\approx 0.444444444$
$$\left(\frac{2}{3}\right)^{2}$$
$$\frac{4}{9}$$
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$\frac{2 ^ {2}}{3 ^ {2}} = 0.4444444444444444$
