[tex] - 6 \times ( - \frac{5}{24} ) = \frac{6 \times 5}{24 } = \frac{5}{4} =1 \frac{1}{4} = 1.25[/tex]

[tex] - \frac{6}{19} \times ( - 57) = \frac{6 \times 57}{19} = 6 \times 3 = 18[/tex]

[tex] - 9 \frac{3}{5} \times - ( \frac{10}{21} ) = \frac{48 \times 10}{5 \times 21} = \frac{16 \times 2}{1 \times 7} = \frac{32}{7} = 5 \frac{2}{7} [/tex]

Ответ:

[tex]1)1 \frac{1}{4} [/tex]

[tex]2)18[/tex]

[tex]3)4 \frac{4}{7} [/tex]

Пошаговое объяснение:

[tex] - 6 \times ( - \frac{5}{24} ) = 6 \times \frac{5}{24} = \frac{5}{4} = 1 \frac{1}{4} [/tex]

[tex] - \frac{6}{19} \times ( - 57) = \frac{6}{19} \times 57 = 6 \times 3 = 18[/tex]

[tex] - 9 \frac{3}{5} \times ( - \frac{10}{21} ) = - \frac{48}{5} \times ( - \frac{10}{21} ) = \frac{48}{5} \times \frac{10}{21} = 48 \times \frac{2}{21} = 16 \times \frac{2}{7} = \frac{32}{7} = 4 \frac{4}{7} [/tex]