Question

4
$4 ^{ - 2} + 5 ^{ -1}$
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Answer 1

Answer:

$4^{-2} +5^{-1}\\\\ = \frac{1}{16} +\frac{1}{5} \\\\\frac{5+16}{80} \\\\\frac{21}{80}$

Step-by-step explanation:

21/80

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