To solve this expression, we will follow the order of operations (PEMDAS):

First, let's simplify within the parentheses:
11,25 - 41/12 + 4,3 - 229/30
11,25 - 3,4167 + 4,3 - 7,6333

Now, we combine similar terms:
7,8333 - 3,4167 - 7,6333
(7,8333 - 3,4167) - 7,6333
4,4166 - 7,6333
-3,2167

Next, we need to perform the division outside the parentheses:
-3,2167 / (91/12 - 35/6)

Simplify the division:
-3,2167 / (7,5833 - 5,8333)
-3,2167 / 1,75

Now, perform the final division:
-1,8364

Therefore, the solution to the expression (11,25-41/12+4,3-229/30):(91/12-35/6) is approximately -1,8364.