Media aritmetica a numerelor a si b = (a+b)/2
a) 3/5 si 7/5
Media aritmetica (3/5;7/5) = (3/5 + 7/5)/2 = (10/5)/2 = 2/2 = 1
b) 6 radical 6 si 8 radical 6
Media aritmetica (6 radical 6; 8 radical 6) = (6 radical 6 + 8 radical 6)/2 = (14 radical 6)/2 = 7 radical 6