Задание 558

a) t = (2 1/3) / (2 1/7) = (7/3) / (15/7) = (7/3) * (7/15) = 49/45 = 1 4/45. b) s = (4 2/3) / (3 1/3) = (14/3) / (10/3) = 14/10 = 1.4. c) y = (8 1/6) * (2 1/3) / (2/3) = (49/6) * (7/3) / (2/3) = (343/18) / (2/3) = 343/12. d) z = (12/17) / (6/7) * (5 1/7) = (12/17) * (7/6) * (36/7) = 12/17.