Answer:
A. (1/2) bucket
Explanation:
 6 11
4 ------ - 3 ------- = ?
 14 12
14 × 4 = 56
56 + 6 = 62
12 × -3 = -36
-36 - 11 = -47
 62 47
------- - -------
 14 12
 62(12) 47(14)
------- - -------
 14(12) 12(14)
 744 658 86
------- - ------- = --------
 168 168 168
 86 ÷ 2
-------
 168 ÷ 2
 43
----- = 0.511
 84
0.511 ≈ (1/2)
I hope this helps!