Let's simplify the expression step by step:
(3/8 - 7/12) = (9/24 - 14/24) = -5/24
((-5/24) 3.6) = -18/24 3.6 = -1.35
(5/18 + 2/27) = (15/54 + 2/27) = (10/54 + 2/54) = 12/54 = 2/9
((-1.35) + (2/9)) = -15/11 + 2/9 = (-135/99) + (22/99) = -113/99
(-113/99) / (36/27) = -113/99 * 27/36 = -3051/3564 = -39/46
Therefore, the final answer is -39/46.
So, the correct option is: 3)
Let's simplify the expression step by step:
(3/8 - 7/12) = (9/24 - 14/24) = -5/24
((-5/24) 3.6) = -18/24 3.6 = -1.35
(5/18 + 2/27) = (15/54 + 2/27) = (10/54 + 2/54) = 12/54 = 2/9
((-1.35) + (2/9)) = -15/11 + 2/9 = (-135/99) + (22/99) = -113/99
(-113/99) / (36/27) = -113/99 * 27/36 = -3051/3564 = -39/46
Therefore, the final answer is -39/46.
So, the correct option is: 3)