Question

2) - 1 1/7*(4/5+19/20)*(6 5/6+4 2/3)​

Answer 1

Ответ:

Пошаговое объяснение:

4/5+19/20=16\20+19\20=35\20=7\4

6 5/6+4 2/3=6 5\6+4 4\6=11 1\2

-1 1\7*7\4=-8\7*7\4=-2

-2*11 1\2=-2*23\2=-23

Answer 2

First, let's simplify the expression inside the parentheses: 4/5 + 19/20 = (16/20) + (19/20) = 35/20 = 7/4

6 5/6 + 4 2/3 = (66 + 5)/6 + (43 + 2)/3 = 41/6 + 14/3 = (41*2 + 14)/6 = 96/6 = 16

So, the expression becomes:

-1 1/7 * (7/4) * (16) = -1 1/7 * 7/1 * 16/1

Next, we'll convert the mixed number -1 1/7 to an improper fraction:

-1 1/7 = -(7/7 + 1/7) = -8/7

Substituting this value in the expression, we get:

-8/7 * 7/1 * 16/1 = -128/1

Therefore, the final result is -128.