Выполните умножение:
1) 16 * (−3);
2) −8 * (−7);
3) −2,3 * (−1,4);
4) $\frac{6}{7} * (-\frac{4}{7})$;
5) $-\frac{4}{7} * \frac{7}{9}$;
6) $-6 * (-\frac{5}{24})$;
7) $-\frac{6}{19} * (-57)$;
8) $-9\frac{3}{5} * (-\frac{10}{21})$.
16 * (−3) = −48
−8 * (−7) = 56
−2,3 * (−1,4) = 3,22
$\frac{6}{7} * (-\frac{4}{7}) = -\frac{24}{49}$
$-\frac{4}{7} * \frac{7}{9} = -\frac{4}{1} * \frac{1}{9} = -\frac{4}{9}$
$-6 * (-\frac{5}{24}) = -1 * (-\frac{5}{4}) = \frac{5}{4} = 1\frac{1}{4}$
$-\frac{6}{19} * (-57) = -\frac{6}{1} * (-3) = 18$
$-9\frac{3}{5} * (-\frac{10}{21}) = -\frac{48}{5} * (-\frac{10}{21}) = -\frac{16}{1} * (-\frac{2}{7}) = \frac{32}{7} = 4\frac{4}{7}$
Пожауйста, оцените решение