1-й пример (1/2+0.25:1/6)*(6,4:80/3)+1/8 2-й пример (2/3+5:25/4)*7/0,8*0,125+6/9 3-й пример (41/18-17/36)*18/65+(8/7-23/49):91/41+7/6

1. (1/2 + 25/100 * 6/1) * (64/10 * 3/80) + 1/8 = (1/2 + 150/100) * 192/800 + 1/8 =
2 * 192/800 + 1/8 = 192/400 + 50/400 = 242/400 = 121/200.
2. (2/3 + 5 * 4/25) * 7 / 8/10 * 125/1000 + 2/3 = (2/3 + 4/5) * 7 / 4/5 * 1/8 + 2/3 = 22/15 * 7 * 5/4 * 1/8 + 2/3 = 154/96 + 2/3 = 154/96 + 64/96 = 218/96 = 2 13/48.
3. (82/36 - 17/36) * 18/65 + (56/49 - 23/49) * 41/91 + 7/6 = 65/36 * 18/65 + 33/49 * 41/91 + 7/6 = 1/2 + 1353/4459 + 7/6 = 13377/26754 + 8118/26754 + 31213/26754 = 52708/26754 =

1 12977/13377.