$$(\frac{5}{2})^{5}\div(\frac{5}{2})^{-2}$$
$\frac{78125}{128}=610.3515625$
$$\left(\frac{5}{2}\right)^{7}$$
$$\frac{78125}{128}$$
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$\frac{5 ^ {7}}{2 ^ {7}} = 610\frac{45}{128} = 610.3515625$
