Question

1) (3,5 -1 2/3)*(4 1/5)+1 1/3: (5,6) 2) (2,5 -2 1/3)* (-5 1/7)+1 1/3:(5,6)

Answer 1

1) -3.5 2)-31.8
Удачи

Answer 2

To solve these expressions, I'll assume the comma in each number represents a decimal point, as it's more commonly used in mathematical notation. Also, I'll assume you meant to use the "×" symbol for multiplication and the "÷" symbol for division. With these assumptions, let's proceed with the calculations:

1. (3.5 - 1.6667) × (4.2) + 1.3333 ÷ (5.6)

Step 1: Perform the operations inside the parentheses. 3.5 - 1.6667 = 1.8333

Step 2: Perform the multiplication. 1.8333 × 4.2 ≈ 7.6849

Step 3: Perform the division. 1.3333 ÷ 5.6 ≈ 0.2385

Step 4: Add the results from the multiplication and division. 7.6849 + 0.2385 ≈ 7.9234

The final answer is approximately 7.9234.

2. (2.5 - 2.3333) × (-5.1429) + 1.3333 ÷ (5.6)

Step 1: Perform the operations inside the parentheses. 2.5 - 2.3333 = 0.1667

Step 2: Perform the multiplication. 0.1667 × (-5.1429) ≈ -0.8570

Step 3: Perform the division. 1.3333 ÷ 5.6 ≈ 0.2385

Step 4: Add the results from the multiplication and division. -0.8570 + 0.2385 ≈ -0.6185

The final answer is approximately -0.6185.