Question

(1/39-5/6) -(3,9-2,2)-5,3=

Answer 1

Ответ:

...............................

Answer 2

To calculate the expression (1/39 - 5/6) - (3.9 - 2.2) - 5.3, you should follow the order of operations (PEMDAS/BODMAS):

1. First, perform the subtraction within the parentheses: (1/39 - 5/6) - (1.7 - 2.2) - 5.3

2. Next, calculate the expressions within each set of parentheses: (1/39 - 5/6) - (-0.5) - 5.3

3. Now, subtract the two fractions: (-(13/78)) - (-0.5) - 5.3

4. Subtract the values: -13/78 + 0.5 - 5.3

5. To add or subtract fractions, they must have a common denominator. In this case, the common denominator can be 78: (-13/78) + (39/78) - (409/78)

6. Add the fractions with the common denominator: (26/78) - (409/78)

7. Subtract the fractions: (26/78) - (409/78) = (-383/78)

8. Finally, subtract 5.3: (-383/78) - 5.3

To express the final result as a decimal:

-383/78 ≈ -4.89744

So, the result is approximately -4.89744 when rounded to five decimal places.