((32\57+27\38)*19\29+(25\26+48\65)*10\51+(74\75+49\50)*15\59)*\3\5

1) 32/57 + 27/38 = 2*32/114 + 3*27/114 = 64/114 + 81/114 = 145/114 = 1 31/114;2) 1 31/114 * 19/29 = 145/114 * 19/29 = 5/6 * 1/1 = 5/6;3) 25/26 + 48/65 = 5*25/130 + 2*48/130 = 125/130 + 96/130 = 221/130 = 1 91/130;4) 1 91/130 * 10/51 = 221/130 * 10/51 = 221/13 * 1/51 = 221/663 = 1/3;5) 5/6 + 1/3 = 5/6 + 2/6 = 7/6 = 1 1/6;6) 74/75 + 49/50 = 2*74/150 + 3*49/150 = 148/150 + 147/150 = 295/150 = 1 145/150 = 1 29/30;7) 1 29/30 * 15/59 = 59/39 * 15/59 = 1/2 * 1/1 = 1/2;8) 1 1/6 + 1/2 = 1 1/6 + 3/6 = 1 4/6 = 1 2/3;9) 1 2/3 * 3/5 = 5/3 * 3/5 = 1/1 * 1/1 = 1/1 = 1.Ответ: 1.