Вычислите: 1. (29-6 5/-5/7) 2. (46 2/9- 4/7-2/3) 3. (6 9/14-1/-5/7) 4. (11 1/2-4/-19/30)

1. (29 - 6 5/8) - (4 - 5/7) = 19 5/56
1) 29 - 6 5/8 = 28 8/8 - 6 5/8 = 22 3/8
2) 4 - 5/7 = 3 7/7 - 5/7 = 3 2/7
3) 22 3/8 - 3 2/7 = 22 21/56 - 3 16/56 = 19 5/56

2. (46 2/9 - 25) - (11 4/7 - 2/3) = 10 20/63
1) 46 2/9 - 25 = 21 2/9
2) 11 4/7 - 2/3 = 11 12/21 - 14/21 = 10 33/21 - 14/21 = 10 19/21
3) 21 2/9 - 10 19/21 = 21 14/63 - 10 57/63 = 20 77/63 - 10 57/63 = 10 20/63

3. (6 9/14 - 1/8) - (1 - 5/7) = 6 13/56
1) 6 9/14 - 1/8 = 6 36/56 - 7/56 = 6 29/56
2) 1 - 5/7 = 2/7
3) 6 29/56 - 2/7 = 6 29/56 - 16/56 = 6 13/56

4. (11 1/2 - 4/15) - (7 - 19/30) = 4 13/15
1) 11 1/2 - 4/15 = 11 15/30 - 8/30 = 11 7/30
2) 7 - 19/30 = 6 11/30
3) 11 7/30 - 6 11/30 = 10 37/30 - 6 11/30 = 4 26/30 = 4 13/15