133. Выполните деление:

a) 3/8 ÷ 2/3 = 3/8 × 3/2 = 9/16. b) 4/7 ÷ 9 = 4/7 × 1/9 = 4/63. c) 11 2/5 ÷ 3 4/5 = (57/5) ÷ (19/5) = 57/19. d) 16/17 ÷ 8 = 16/17 × 1/8 = 2/17. e) 12 ÷ 6/7 = 12 × 7/6 = 14.