Answer
$\frac{16}{25}$
Work Step by Step
$(\frac{5}{4})^{-2}=\frac{1}{(\frac{5}{4})^{2}}=\frac{1}{\frac{5}{4}\times\frac{5}{4}}=\frac{1}{\frac{5\times5}{4\times4}}=\frac{1}{\frac{25}{16}}=\frac{16}{25}$
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