Question

Помогите пожалуйста!
-1,25 : 2,5
14,7 : (-7)
3,9 * (-⅔)
2,8 * (-1 ¹/7)
-1 2/5 * (0,125)
⁴/7 * (-4,2)
2,1 : (-0,7)

Answer 1

$- 1.25 \div 2.5 \\ ( - 1.25 \div 2.5) = - 0.5 \\ \\ 14.7 \div ( - 7) \\ ( - 14 \div 7) = - 2.1 \\ \\ 3.9 \times ( - \frac{2}{3} ) \\ \\ \frac{39}{10} \times ( - \frac{2}{3} ) \\ \\ - 2.6 \\ \\ 2.8 \times ( - 1 \frac{1}{7} ) \\ \\ \frac{14}{5} \times ( - 1 \frac{1}{7} ) \\ \\ - \frac{2}{5} \\ \\ - 0.4. \\ \\ - 1 \frac{2}{5} \times( 0.125) \\ \\ - 1 \frac{2}{5} \times \frac{1}{8} \\ \\ - 1 \frac{1}{5} \times \frac{1}{4} \\ \\ - \frac{1}{20 } \\ \\ 0.05 \\ \\ \frac{4}{7} \times ( - 4.2) \\ \\ \frac{4}{7} \times ( - \frac{21}{5} ) \\ \\ - 4 \times \frac{3}{5} \\ \\ - \frac{12}{5} \\ \\ - 2.4 \\ \\ 2.1 \div ( - 0.7) \\ - (2.1 \div 0.7) = 3 \\ 3.$