\(3 : (\frac{3}{4}+\frac{9}{16})+\frac{2}{3}\cdot(\frac{5}{7}-\frac{9}{21})\) . \(\frac{52}{21}\) \(\frac{109}{21}\) \(\frac{8}{63}\) \(\frac{37}{63}\) \(\frac{23}{28}\)

Задание

Найдите значение выражения
\(3 : (\frac{3}{4}+\frac{9}{16})+\frac{2}{3}\cdot(\frac{5}{7}-\frac{9}{21})\) .

\(\frac{52}{21}\)
\(\frac{109}{21}\)
\(\frac{8}{63}\)
\(\frac{37}{63}\)
\(\frac{23}{28}\)