To simplify the expression, first simplify the terms inside the parentheses:
5 - 4 = 1
Then, continue simplifying the expression:
1/3 + 9/4 / (1 - 2) = 1/3 + 9/4 / -= 1/3 + -9/= 4/12 - 27/1= -23/12
Therefore, the answer is -23/12.
To simplify the expression, first simplify the terms inside the parentheses:
5 - 4 = 1
Then, continue simplifying the expression:
1/3 + 9/4 / (1 - 2) = 1/3 + 9/4 / -
= 1/3 + -9/
= 4/12 - 27/1
= -23/12
Therefore, the answer is -23/12.