Question

1/3+{4/9-(9/81+18/81)}​

Answer 1

$= > \frac{1}{3} + ( \frac{4}{9} - \frac{27}{81} ) \\ \\ = > \frac{1}{3} + \frac{36 - 27}{81} \\ \\ = > \frac{1}{3} + \frac{9}{81} \\ \\ = > \frac{27 + 9}{81} \\ \\ = > \frac{36}{81} = \frac{4}{9}$

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