To simplify the expression, we first need to perform the operations within the parentheses and then apply the appropriate order of operations.
(3,9-5,80)-(-1/45-7/9)+1,1 Convert the comma decimal numbers to standard form: (3.9-5.80)-(-0.0222-0.7778)+1.1 Perform subtraction within the parentheses: (-1.9)-(-0.8)+1.1 Remember that subtracting a negative number is the same as adding a positive number, so the expression becomes: (-1.9 + 0.8) + 1.1 Perform addition within the parentheses: -1.1 + 1.1 Since -1.1 + 1.1 equals 0: The final answer is 0.
To simplify the expression, we first need to perform the operations within the parentheses and then apply the appropriate order of operations.
(3,9-5,80)-(-1/45-7/9)+1,1
Convert the comma decimal numbers to standard form:
(3.9-5.80)-(-0.0222-0.7778)+1.1
Perform subtraction within the parentheses:
(-1.9)-(-0.8)+1.1
Remember that subtracting a negative number is the same as adding a positive number, so the expression becomes:
(-1.9 + 0.8) + 1.1
Perform addition within the parentheses:
-1.1 + 1.1
Since -1.1 + 1.1 equals 0:
The final answer is 0.