Question

(5 5/28 - 5 1/3 ×1.25- 1 16/21) : (-1.5) (С решением!)

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

To solve the expression, follow the order of operations: parentheses, exponents, multiplication and division (from left to right), and finally addition and subtraction (from left to right).

Step 1: Simplify within the parentheses: 5 1/3 × 1.25 = 16/3 × 1.25 = 20/3

Step 2: Perform the subtraction inside the parentheses: 5 5/28 - 20/3 - 1 16/21

To perform the subtraction, you need to find a common denominator. The common denominator for 28, 3, and 21 is 84.

Converting each fraction to have a denominator of 84: 5 × 84/28 = 15 20/3 × 28/28 = 560/84 1 × 84/21 = 4

Now, the expression becomes: 15 - 560/84 - 4

Step 3: Perform the subtraction: 15 - 560/84 - 4 = 15 - (560/84) - 4 = 15 - 6.66667 - 4 ≈ 4.33333

Step 4: Divide the result by (-1.5): 4.33333 ÷ (-1.5) ≈ -2.88889

The final result, rounded to five decimal places, is approximately -2.88889.