1) 1/2a + 1/3a - 1/4a = (3 + 2 - 6)/12 = -1/12Подставляем a = 1 5/7:-1/12 = -1/12 = -0.08333333333
2) 4/7b + 5/21b - 2/3b = (12 + 5 - 14)/21 = 3/21 = 1/7Подставляем b = 2 1/3:1/7 = 1/7 = 0.1428571428
3) 1 5/12m + 2 7/18m - 1 2/9m = (12 + 14 - 24)/36 = 2/36 = 1/18Подставляем m = 1 17/31:1/18 = 1/18 = 0.05555555556
1) 1/2a + 1/3a - 1/4a = (3 + 2 - 6)/12 = -1/12
Подставляем a = 1 5/7:
-1/12 = -1/12 = -0.08333333333
2) 4/7b + 5/21b - 2/3b = (12 + 5 - 14)/21 = 3/21 = 1/7
Подставляем b = 2 1/3:
1/7 = 1/7 = 0.1428571428
3) 1 5/12m + 2 7/18m - 1 2/9m = (12 + 14 - 24)/36 = 2/36 = 1/18
Подставляем m = 1 17/31:
1/18 = 1/18 = 0.05555555556