Question

Вычисли:

(-2,5-1 5\6): 1 4\9-3 5\9*(-2 1\4)

Answer 1

Ответ:

Пошаговое объяснение:

(-2,5-1 5/6): 1 4/9-3 5/9*(-2 1/4)= 5

1) (-2,5-1 5/6) = - 5/2 - 11/6= -15/6 - 11/6=- 26/6

2) -26/6 : 1 4/9= -26/6 : 13/9= -26/6 * 9/13 = - 3

3) 3 5/9 *(-2 1/4) = 32/9 * (- 9/4)= -8

4) -3 -(-8)= 5

Answer 2

Ответ:

$( - 2.5 - 1 \frac{5}{6} ) \div 1 \frac{4}{9} - 3 \frac{5}{9} \times ( - 2 \frac{1}{4} )= ( - 2 \frac{3}{6} - 1 \frac{5}{6} ) \div 1 \frac{4}{9} - 3 \frac{5}{9} \times ( - 2 \frac{1}{4} ) = - 4\frac{1}{ 3} \div 1 \frac{4}{9} + \frac{32 \times 9}{9 \times 4} = - \frac{13 \times 9}{3 \times 13} + 8 = 8 - 3 = 5$