First, we need to simplify the expression within the parentheses:
4 5\6 = 29/6
(29/6 - 25) = (29/6 - 150/6) = -121/6
Now, we substitute the simplified expression back into the equation:
(-121/6)12 - 27(5/9)
= -121/6 *12 - (135/3)
= -242 - 15
= -257
Therefore, the final answer is -257.
First, we need to simplify the expression within the parentheses:
4 5\6 = 29/6
(29/6 - 25) = (29/6 - 150/6) = -121/6
Now, we substitute the simplified expression back into the equation:
(-121/6)12 - 27(5/9)
= -121/6 *12 - (135/3)
= -242 - 15
= -257
Therefore, the final answer is -257.