Question

$(\frac{1}{2} - \frac{1}{3}) - ( \frac{1}{6} - \frac{1}{10}) =$
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Answer 1

$( \frac{1}{2} - \frac{1}{3} ) - ( \frac{1}{6} - \frac{1}{10} ) = \frac{1}{6} - \frac{1}{15} = \frac{1}{10}$