Răspuns :

a)  4/5 : 5/4 = 4/5 x 4/5 = 16/25 → FALS

b) 1/2 : 3 = 1/2 x 1/3 = 1/6  → FALS

c) 3 : 1/3 = 3 x 3 = 9  → FALS

d) 1/2 : 3/4 = 1/2 x 4/3 = 4/6 = 2/3  → FALS