Bonjour,
A
-3 -2/(1/3)=
-3 -(2*3) = -3 -6 = -9
B
2*1/3 -(-3)=
2/3 +3 = 2/3 +9/3 = 11/3
C
2 + (1/3)/-3=
2 + (1/3)* (-1/3) =
2-1/9 = 18/9 -1/9 = 17/9