1125. (7 : 5/6 - 8 1/9) * 2 2/5 : ((3/8 + 5/6 + 5/12) * 8/25).

1125. (7 : 5/6 - 8 1/9) * 2 2/5 : ((3/8 + 5/6 + 5/12) * 8/25) 1) 7 : 5/6 = 7 * 6/5 = 42/5 = 8 2/5 2) 8 2/5 - 8 1/9 = 42/5 - 73/9 = (378 - 365) / 45 = 13/45 3) 3/8 + 5/6 + 5/12 = (9 + 20 + 10) / 24 = 39/24 = 13/8 4) 13/8 * 8/25 = 13/25 5) 13/45 * 2 2/5 = 13/45 * 12/5 = (13 * 4) / (15 * 5) = 52/75 6) 52/75 : 13/25 = 52/75 * 25/13 = 4/3 = 1 1/3 Ответ: 1 1/3 1126. ((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 = (64 + 81) / 114 = 145/114 2) 145/114 * 19/29 = 5/6 3) 25/26 + 48/65 = (125 + 96) / 130 = 221/130 4) 221/130 * 10/51 = 17/13 * 10/51 = 170/663 = 10/39 5) 74/75 + 49/50 = (148 + 147) / 150 = 295/150 = 59/30 6) 59/30 * 15/59 = 1/2 7) 5/6 + 10/39 + 1/2 = (65 + 20 + 39) / 78 = 124/78 = 62/39 8) 62/39 * 3/5 = 62/65 Ответ: 62/65 1127. ((12 1/2 - 2) : (1/5 - 1/40) - (2 + 6 2/3) : (1 5/6 - 1 2/3)) * 3/8 1) 12 1/2 - 2 = 10 1/2 = 21/2 2) 1/5 - 1/40 = 8/40 - 1/40 = 7/40 3) 21/2 : 7/40 = 21/2 * 40/7 = 3 * 20 = 60 4) 2 + 6 2/3 = 8 2/3 = 26/3 5) 1 5/6 - 1 2/3 = 11/6 - 5/3 = 11/6 - 10/6 = 1/6 6) 26/3 : 1/6 = 26/3 * 6/1 = 52 7) 60 - 52 = 8 8) 8 * 3/8 = 3 Ответ: 3