Вправи 401 - 500 » 408

408. Виконайте ділення: 1) 11/15 : 3/8 = 11/5 ∙ 8/3 = 88/45 = 143/45; 2) 6/35 : 18/25 = 6/35 ∙ 25/18 = 1/7 ∙ 5/3 = 5/21; 3) 12/55 : 48/77 = 12/55 ∙ 77/48 = 1/5 ∙ 7/4 = 7/20; 4) 21/40 : 3/4 = 21/40 ∙ 4/3 = 7/10; 5) 27/50 : 9/25 = 27/50 ∙ 25/9 = 3/2 = 11/2; 6) 63/64 : 45/56 = 63/64 ∙ 56/45 = 7/8 ∙ 7/5 = 19/40; 7) 5/8 : 5/32 = 5/8 ∙ 32/5 = 4; 8) 14/55 : 1/5 = 14/55 ∙ 5 = 14/11 = 13/11.