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One fifth added to one half = 1/5 + 1/2.

Multiply numerator and denominator of 1/5 by 2 and that of 1/2 by 5 so that the denominators are equal.

We get, 1/5 = (1x2)/(5x2) = 2/10 and 1/2 = (1x5)/(2x5) = 5/10

1/5 + 1/2 = 2/10 + 5/10 = (2+5)/10 = 7/10.

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13y ago

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