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Решите задачу:

$\frac{ \frac{52}{15} * \frac{1}{4} + \frac{5}{6} - \frac{7}{5} }{ \frac{54}{10} /( \frac{3}{20} + \frac{3}{4} )} = \frac{ \frac{52}{60} + \frac{5}{6} - \frac{7}{5} }{ \frac{54}{10} /( \frac{3}{20} + \frac{15}{20} )} = \frac{ \frac{52}{60} + \frac{50}{60} - \frac{84}{60} }{ \frac{54}{10} /( \frac{18}{20} )} = \frac{ \frac{18}{60} }{ \frac{54}{10} *( \frac{20}{18} )} =$ $\frac{ \frac{18}{60} }{ \frac{54}{10} *( \frac{20}{18} )} = \frac{ \frac{3}{10} }{ \frac{1080}{180} } = \frac{3}{10} * \frac{18}{108} = \frac{54}{1080} = \frac{54}{54 * 20} = \frac{1}{20} = 0.05$ $\frac{3 \frac{7}{15} * 0.25 + \frac{5}{6} -1 \frac{2}{5} }{5.4/( \frac{3}{20} + 0.75)} = \frac{ \frac{52}{15} * \frac{1}{4} + \frac{5}{6} - \frac{7}{5} }{ \frac{54}{10} /( \frac{3}{20} + \frac{3}{4} )} =$