Question

(15,54:(-4,2)-2,5)×14+1,08

Answer 1

Переобразовываем десятичную дробь в обыкновенную

($\frac{777}{50}$:(-$\frac{21}{5}$)-$\frac{5}{2}$)×14+$\frac{27}{25}$

(-$\frac{777}{50}$х$\frac{5}{21}$-$\frac{5}{2}$)х14+$\frac{27}{25}$

Сокращаем

(-$\frac{37}{10}$-$\frac{5}{2}$)х14+$\frac{27}{25}$

Вычисляем

-$\frac{31}{5}$х14+$\frac{27}{25}$

Вычисляем

-$\frac{434}{5}$+$\frac{27}{25}$

Вычисляем

-$\frac{2143}{25}$

Можно выделить целую часть

-85$\frac{18}{25}$

Answer 2

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

Step 1: Solve the expression inside the innermost parentheses. (-4,2) - 2,5 = -1,5

Step 2: Rewrite the expression with the result from step 1: (15,54: -1,5) × 14 + 1,08

Step 3: Perform the division: 15,54 ÷ -1,5 = -10,36

Step 4: Rewrite the expression with the result from step 3: -10,36 × 14 + 1,08

Step 5: Perform the multiplication: -10,36 × 14 = -145,04

Step 6: Rewrite the expression with the result from step 5: -145,04 + 1,08

Step 7: Perform the addition: -145,04 + 1,08 = -143,96

Therefore, the result of the expression (15,54:(-4,2)-2,5)×14+1,08 is approximately -143.96.