Question

Выполните действия: а) - 14/81:(-3 1/9)*(-18/35):(+1 1/35);
б) 32/73*(-73/64):11/76*(-1 14/19)
в) 3/7:(-1,5)*14:(-1,2)

Answer 1

а)

$- \frac{14}{81} \div ( - 3 \frac{1}{9} ) \times ( - \frac{18}{35} ) \div 1 \frac{1}{35} = \frac{14}{81} \times \frac{9}{28} \times ( - \frac{18}{35} ) \times \frac{35}{36} = \frac{1}{18} \times ( - \frac{1}{2} ) = - \frac{1}{36}$

б)

$\frac{32}{73} \times ( - \frac{73}{64} ) \div \frac{11}{76} \times ( - 1 \frac{14}{19} ) = \frac{32}{73} \times \frac{73}{64} \times \frac{76}{11} \times \frac{33}{19} = \frac{1}{2} \times \frac{12}{1} = 6$

в)

$\frac{3}{7} \div ( - 1.5) \times 14 \div ( - 1.2) = \frac{3}{7} \times \frac{2}{3} \times \frac{14}{1} \times \frac{5}{6} = \frac{4}{1} \times \frac{5}{6} = \frac{10}{3}$