Переводим смешанные дроби в неправильные:
1. 1/3 * (32/15 * 25/4 - 16/3 * 9/8) + 41/9 = 7
1) 32/15 * 25/4 = 40/3 = 13 1/3
2) 16/3 * 9/8 = 6
3) 13 1/3 - 6 = 7 1/3 = 22/3
4) 1/3 * 22/3 = 22/9 = 2 4/9
5) 22/9 + 41/9 = 63/9 = 7
2. 154/5 - 7/5 * (9/5 * (151/12 - 343/36) - 17/35 * 45/34) = 5 47/60
1) 151/12 - 343/36 = (151*3)453/36 - 343/36 = 110/36 = 3 2/36
2) 9/5 * 110/36 = 22/4 = 5 2/4 = 22/4
3) 17/35 * 45/34 = 9/14
4) 22/4 - 9/14 = 154/28 - 18/28 = 136/28
НОЗ: 28.
5) 7/5 * 136/28 = 136/20
6) 151/12 - 136/20 = 755/60 - 408/60 = 347/60 = 5 47/60
НОЗ: 60.