Question

1×1÷6 - 1×1÷9 + 1×1÷54

Answer 1

$= > \frac{1 \times 1}{6} - \frac{1 \times 1}{9} + \frac{1 \times 1}{54} \\ \\ = > \frac{1}{6} - \frac{1}{9} + \frac{1}{54} \\ \\ = > \frac{9 - 6 + 1}{54} \\ \\ = > \frac{4}{54 } \\ \\ = > \frac{2}{27}$
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