P = 4.7
Пошаговое объяснение:
P = A + B + C = 2/3 + 2+1/5 + 1+5/6 = 3 + 2/3 + 1/5 + 5/6 = 3 + 20/30 + 6/30 + 25/30 = 3+51/30 = 4 + 21/30 = 4 + 7/10 = 4.7
