Question

Решите второе в первом

Answer 1

$( - 2 \frac{13}{48} - ( - 2 \frac{5}{12} ) \div ( - 3 \frac{3}{4} ) + 9 \frac{3}{4} \div ( - 13) = \\ ( \frac{109}{48} - ( - \frac{29}{12} )) \div ( - \frac{15}{4} ) + \frac{39}{4} \div ( - 13) = \\ ( \frac{109}{48} + \frac{29}{12} ) \div ( - \frac{15}{4} ) - \frac{39}{4} \times \frac{1}{13} = \\ \frac{75}{16} \div ( - \frac{15}{4} ) - \frac{3}{4} = \\ - \frac{75}{16} \times \frac{4}{15} - \frac{3}{4} = \\ - \frac{5}{4} - \frac{3}{4} = \\ - \frac{8}{4} = - 2$