URGENTTTT!!!! DAU COROANĂ+6 PUNCTE!!

Răspuns:
Explicație pas cu pas:
a). 6/6=4/10 1=2/5 FALS
b). 2/5=4/10 2/5=2/5 ADEVARAT
c). 1/3=2/6 1/3=1/3 ADEVARAT
d). 2/4=5/8 1/2=5/8 FALS