Question

Помогите пж даю 10 баллов

Answer 1

Ответ:

1) $-8\frac{1}{3}$

2) $-58\frac{4}{5}$

3) $-16\frac{5}{22}$

4) $-30\frac{5}{6}$

5) $-40\frac{7}{8}$

6) $-73\frac{2}{3}$

Пошаговое объяснение:

1) $3\frac{8}{9} *(-2\frac{1}{7} ) = \frac{35}{9} * (-\frac{15}{7} ) = -\frac{5}{3} * 5 = -\frac{25}{3} = -8\frac{1}{3}$ .

2) $8\frac{1}{6} * (-7\frac{1}{5} ) = \frac{49}{6} * (-\frac{36}{5} ) = 49 * \frac{6}{5} = -\frac{294}{5} = -58\frac{4}{5}$ .

3) $6\frac{3}{8} * (-2\frac{6}{11} ) = \frac{51}{8} * (-\frac{28}{11} ) = -\frac{51}{2} * \frac{7}{11} = -\frac{357}{22} = -16\frac{5}{22}$ .

4) $10\frac{4}{7} * (-2\frac{11}{12} ) = \frac{74}{7} * (-\frac{35}{12} ) = -37 * \frac{5}{6} = -\frac{185}{6} = -30\frac{5}{6}$ .

5) $5\frac{5}{8} * (-7\frac{4}{15} ) = \frac{45}{8} * (-\frac{109}{15} ) = -\frac{3}{8} * 109 = -\frac{327}{8} = -40\frac{7}{8}$ .

6) $7\frac{5}{9} * (-9\frac{3}{4} ) = \frac{68}{9} * (-\frac{39}{4} ) = -\frac{17}{3} * 13 = -\frac{221}{3} = -73\frac{2}{3}$ .