Express the following as a fraction and simplify:
$2.45$

\frac{49}{20}

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\frac{20}{49}

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\frac{19}{20}

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\frac{20}{19}

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Solution

The correct option is C $\frac{49}{20}$
To convert a decimal to a fraction, write it over the appropriate power of 10 and simplify:
$2.45 = 2 \frac{45}{100} = 2 \frac{9}{20}$ ...Mixed fraction
$= \frac{49}{20}$ ....Improper fraction

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Simplify: 20 ÷ [19 - {14 - 5}]

\frac{6}{19} (\frac{10}{19} + \frac{15}{20})

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