Question

(-1 1\9)*(1 3\5-1\4)+2,5

Answer 1

Ну вот как то так. В прикреплённом файле

Answer 2

To solve this expression, we need to follow the order of operations, which is Parentheses, Exponents, Multiplication and Division (from left to right), and finally Addition and Subtraction (from left to right).

Let's start by simplifying the expression inside the parentheses:

1 3/5 - 1/4 = (8/5) - (1/4) = (32/20) - (5/20) = 27/20

So now our expression becomes:

(-1 1/9) * (27/20) + 2.5

Next, let's convert the mixed number (-1 1/9) to an improper fraction:

-1 1/9 = (-9/9) - (1/9) = -10/9

Now we can substitute this value and simplify the multiplication:

(-10/9) * (27/20) = (-1027)/(920) = -3/2

Finally, we can add 2.5:

-3/2 + 2.5 = (5/2) - (3/2) = 2/2 = 1

Therefore, the solution to the expression (-1 1\9)*(1 3\5-1\4)+2,5 is 1.