Question

(8 7/12-2 17/36)*2,7-4 1/3:0,65.у відповідь записати результат,округлений до 0,01

Answer 1

$(8\frac{7}{12} -2\frac{17}{36} )*2,7-4\frac{1}{3} :0,65=(\frac{309}{36} -\frac{89}{36} )*2,7-\frac{13}{3} :0,65=\\=\frac{220}{36} *2,7-\frac{13}{3} *\frac{100}{65} =\frac{33}{2} -\frac{20}{3} =\frac{59}{6} =9,83$

Answer 2

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

1. Simplify the expression within the parentheses.
2. Perform the multiplication and division from left to right.
3. Round the final result to two decimal places.

Let's break down the steps:

Step 1: Calculate the value inside the parentheses: (8 7/12 - 2 17/36) * 2.7 - 4 1/3 ÷ 0.65

8 7/12 = (8 * 12 + 7) / 12 = (96 + 7) / 12 = 103 / 12 2 17/36 = (2 * 36 + 17) / 36 = (72 + 17) / 36 = 89 / 36

Now, we have: (103/12 - 89/36) * 2.7 - 4 1/3 ÷ 0.65

Step 2: Perform the subtraction within the parentheses: (103/12 - 89/36) * 2.7 = (103/12 - 2.4722222...) * 2.7

To simplify the fraction (103/12 - 89/36), first, find a common denominator which is 36: 103/12 = (103 * 3) / (12 * 3) = 309 / 36

Now, we have: (309/36 - 89/36) * 2.7 = (220/36) * 2.7

Step 2 (continued): Perform the multiplication: (220/36) * 2.7 = 440/36

Step 2 (continued): Perform the division: 440/36 ≈ 12.2222222...

Step 3: Now, subtract 4 1/3 from the result above and then divide by 0.65: (12.2222222... - 4 1/3) ÷ 0.65

4 1/3 = (4 * 3 + 1) / 3 = 13 / 3

Now, we have: (12.2222222... - 13/3) ÷ 0.65

Step 3 (continued): Perform the subtraction: 12.2222222... - 13/3 ≈ -0.1098784...

Step 3 (continued): Perform the division: -0.1098784... ÷ 0.65 ≈ -0.169043...

Step 3 (continued): Round the result to two decimal places: -0.169043... ≈ -0.17

So, the rounded result is approximately -0.17.