Question

6 2/3×(-2 3/4)+13 3/5 ÷1,7 (4,3-7,85):7,1

Answer 1

Ответ:

Пошаговое объяснение:

6 2/3×(-2 3/4)+13 3/5 ÷1,7

(4,3-7,85):7,1

20/3*(-11/4)+68/5:17/10

-55/3+8=-31/3

Answer 2

To solve this expression, let's break it down step by step:

1. Convert mixed numbers to improper fractions:

$6 \frac{2}{3}$ can be written as $6 + \frac{2}{3} = \frac{18}{3} + \frac{2}{3} = \frac{20}{3}$

$-2 \frac{3}{4}$ can be written as $-2 - \frac{3}{4} = -\frac{8}{4} - \frac{3}{4} = -\frac{11}{4}$

$13 \frac{3}{5}$ can be written as $13 + \frac{3}{5} = \frac{65}{5} + \frac{3}{5} = \frac{68}{5}$

2. Perform the operations inside the parentheses:

$4.3 - 7.85 = -3.55$

3. Divide -3.55 by 7.1:

$-\frac{3.55}{7.1} = -0.5$

4. Perform the multiplication and division:

$\frac{20}{3} \times (-\frac{11}{4}) + \frac{68}{5} \div 1.7 \times (-0.5)$

$= -\frac{220}{12} + \frac{68}{5} \div 1.7 \times (-0.5)$

$= -\frac{55}{3} + \frac{68}{5} \div 1.7 \times (-0.5)$

$= -\frac{55}{3} + \frac{68}{5} \times \frac{1}{1.7} \times (-0.5)$

$= -\frac{55}{3} + \frac{68}{8.5} \times (-0.5)$

$= -\frac{55}{3} + 8 \times (-0.5)$

$= -\frac{55}{3} - 4$

$= -\frac{67}{3}$ or approximately $-22.33$