\frac{1}{20} = \frac{1 * 5}{20 * 5} = \frac{5}{100} = 0,05
\frac{7}{50} = \frac{7 * 2}{50 * 2} = \frac{14}{100} = 0,14
\frac{4}{5} = \frac{4 * 2}{5 * 2} = \frac{8}{10} = 0,8
\frac{8}{25} = \frac{8 * 4}{25 * 4} = \frac{32}{100} = 0,32
\frac{6}{500} = \frac{6 * 2}{500 * 2} = \frac{12}{1000} = 0,012
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