-1.1/9 * (1.3/5 - 1/4) + 2.5

First, simplify the expression inside the parentheses:

1.3/5 - 1/4 = 0.26 - 0.25 = 0.01

Next, multiply -1.1/9 by 0.01:

-1.1/9 * 0.01 = -0.0111111...

Now, add 2.5 to the result:

-0.0111111... + 2.5 = 2.4888888...

Therefore, the final answer is 2.4888888...