Am nevoie de ajutor la 5 repede.

Răspuns:
a) 0
b) -7/3-5/3=-12/3=4
c) 11/4+1/4= 12/4=3
d) +1/3-4/3= -3/3=1
e) -2/5+7/5=5/5=1
f) 4/3-1/3=3/3=1
minus • minus=plus
plus • plus= plus
minus • plus= minus