Question

Реши пример:
-12:(-2 1/3)+1 1/4:(-15/46)

Answer 1

$( - 12) \div ( - 2\frac{1}{3} ) + 1 \frac{1}{4} \div ( - \frac{15}{46} ) = \frac{55}{42} \\ - 12 \div - \frac{7}{3} = - \frac{12}{1} \times - \frac{3}{7} = \frac{36}{7} \\ \frac{5}{4} \times - \frac{46}{15} = - \frac{23}{6} \\ 3) \frac{36}{7} - \frac{23}{6} = \frac{216 - 161}{42} = \frac{55}{42}$