Răspuns:
= (3/9 + 4/3:16/9):(12/12 + 1/2)= (1/3 + 4/3*9/16):13/12 = (1/3+ 3/4)*12/13 = (4/12 + 9/12)*12/13 = 13/12*12/13 = 1
Explicație pas cu pas:
sper ca team ajutat
