Explications étape par étape:
A = 11/5 ÷ (-3)
A= 11/5 × 1/-3
A = 11×1
- ___
5×3
A= -11/15
B = (-3) ÷ 11/5
B = (-3) × 5/11
B = -3×5
____
11
B = -15/11
C = 5/6 ÷ 6/5
C = 5/6 × 5/6
C = 5×5
_____
6×6
C = 25/36
D= 2/-3 ÷ -5/7
D = 2/-3 × -7/5
D = 2×7
____
3×5
D = 14/15