Question

1/3(2a-2/3)-2/3(1/2a-1/3)
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Answer 1

Объяснение:

$\frac{1}{3}(2a - \frac{2}{3} ) - \frac{2}{3} ( \frac{1}{2}a - \frac{1}{3}) = \frac{2a}{3} - - \frac{2}{9} - \frac{2a}{6} + \frac{2}{9} = \frac{4a - 2a}{6} = \frac{2a}{6} = \frac{a}{3}$