Question

3/5+1/2-2/20=
1/6+1/7=

Answer 1

$\frac{3}{5} + \frac{1}{2} - \frac{2}{20} \\\\ \frac{6+5-2}{10} = \frac{9}{10}$
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$\frac{1}{6} + \frac{1}{7} = \frac{7+6}{42} = \frac{13}{42}$