Find the decimal form of the sum (1/2 + 1/5).

0.5

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0.6

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0.7

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0.8

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Solution

The correct option is C 0.7
$\frac{1}{2} + \frac{1}{5} = \frac{1 \times 5}{2 \times 5} + \frac{1 \times 2}{5 \times 2} = \frac{5}{10} + \frac{2}{10} = \frac{7}{10} = 0.7$

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