Question

??
$\frac{7}{15} - \frac{3}{10} =$

Answer 1

$\frac{7}{15} - \frac{3}{10} = \frac{14}{30} - \frac{9}{30} = \frac{5}{30} = \frac{1}{6} = {6}^{ - 1}$

Answer 2

$\frac{7}{15} - \frac{3}{10} = \frac{14}{30} - \frac{9}{30} = \frac{5}{30} = \frac{1}{6}$
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