Answer
$\frac{1}{400}$
Work Step by Step
A percent can be written as a fraction with 100 as the denominator.
0.25%=$\frac{0.25}{100}$ =$\frac{0.25\times100}{100\times100}$=$\frac{25}{10000}$=$\frac{25\div25}{10000\div25}$=$\frac{1}{400}$
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