Question

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Answer 1

$\frac{4}{20} = \frac{4 \times 2}{20} = \frac{8}{40} \\ = \frac{4 \times 3 }{20 \times 3} = \frac{12}{60} \\ = \frac{4 \times 4}{20 \times 4} = \frac{16}{80} \\ = \frac{4 \times 5}{20 \times 5} = \frac{20}{100} \\ = \frac{4 \times 6}{20 \times 6 } = \frac{24}{120}$

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Answer 2

$\frac{4}{20} \\ \frac{8}{40} \\ \frac{12}{60} \\ \frac{16}{80} \\ \frac{20}{100}$