Question

даю 20 баллів і пять зірок!!

Answer 1

Пошаговое объяснение:

$1) \ - \frac{1}{3} \times \frac{3}{5} = - \frac{1 \times 3}{3 \times 5} = - \frac{1}{5} = - 0.2$

$2) \ - \frac{1}{6} \times ( - \frac{6}{17} ) = \frac{1 \times 6}{6 \times 17} = \frac{1}{17}$

$3) \ \frac{3}{7} \times ( - \frac{14}{15} ) = - \frac{3 \times 14}{7 \times 15} = - \frac{2}{5} = - 0.4$

$4) \ - 11 \times \frac{15}{22} = - \frac{11 \times 15}{22} = - \frac{15}{2} = - 7 \frac{1}{2} = - 7.5$

$5) \ - \frac{17}{26} \times ( - 13) = \frac{17 \times 13}{26} = \frac{17}{2} = 8 \frac{1}{2} = 8.5$

$6) \ - \frac{12}{13} \times ( - \frac{26}{27} ) = \frac{12 \times 26}{13 \times 27} = \frac{8}{9}$

$7) \ \frac{6}{35} \times ( - \frac{25}{36} ) = - \frac{6 \times 25}{35 \times 36} = - \frac{5}{42}$

$8) \ \frac{13}{24} \times ( - \frac{16}{39} ) = - \frac{13 \times 16}{24 \times 39} = - \frac{2}{9}$