Question

Вычеслите 36:(-1,2/7) + 2,5/6​

Answer 1

$36 \div ( - 1 \frac{2}{7} ) + 2 \frac{5}{6} = 36 \div ( - \frac{9}{7} ) + \frac{17}{6} = 36 \times (-\frac{7}{9}) + \frac{17}{6} = - 4 \times 4 + \frac{17}{6} = -( 28 + \frac{17}{6} ) = - ( \frac{168 + 17}{6} ) = - \frac{151}{6} = - 25 \frac{1}{6}$

Answer 2

36 : (-1 2/7) + 2 5/6 = -25 1/6

1) 36 : (-1 2/7) = 36 : (-9/7) = 36 · (-7/9) = 4 · (-7) = -28;

2) -28 + 2 5/6 = -(27 6/6 - 2 5/6) = -25 1/6.

Ответ: -25 целых 1/6.