Question

$3 - ( \frac{3}{7} - \frac{2}{3} )$


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Answer 1

Respuesta:

$3 - ( \frac{3}{7} - \frac{2}{3}) = \\ 3 - ( \frac{9}{21} - \frac{14}{21} ) = \\ 3 - ( - \frac{5}{21} ) \\ 3 + \frac{5}{21} = \frac{63}{21} + \frac{5}{21} = \frac{68}{21}$