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 Question from Esmeralda, a student: How do you change a decimal to a ratio? Express the decimal 0.2 as a ratio.

Hi Esmeralda,

The decimal 0.2 can be expressed as a fraction $0.2 = \frac{0.2}{1} = \frac{2}{10} = \frac15.$

Can you convert a common fraction to a ratio?

Penny

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