Giải thích các bước giải:
1. `3/5 + |-5/3| - (-1)/2 + 1/(-4) = 3/5 + 5/3 + 1/2 - 1/4 = 36/60 + 100/60 + 30/60 - 15/60 = 151/60`
2. `1 3/5 - |5/2| + (-1)/4 + 1/8 = 8/5 - 5/2 - 1/4 + 1/8 = 64/40 - 100/40 - 10/40 + 5/40 = -41/40`
3. `|5/(-4)| - |1/(-3)| + (-5)/6 - 4 1/2 = 5/4 - 1/3 - 5/6 - 9/2 = 15/12 - 4/12 - 10/12 - 54/12 = -53/12`
4. `5/8 - |-1/12| - 3 1/4 + |-5/6| = 5/8 - 1/12 - 13/4 + 5/6 = 15/24 - 2/24 - 78/24 + 20/24 = (-15)/8`
5. `3/(-7) + |-5/12| + 3 1/4 + |-5/3| = (-3)/7 + 5/12 + 13/4 + 5/3 = (-36)/84 + 35/84 + 273/84 + 140/84 =103/21`
6. `1 3/5 - |1/(-4)| + 2/(-3) - |-1/2| = 8/5 - 1/4 - 2/3 - 1/2 = 96/60 - 15/60 - 40/60 - 30/60 = 11/60`
7. `2 1/3 - |-5/6| + 1 5/12 - |-7/2| = 7/3 - 5/6 + 15/12 - 7/2 = 28/12 - 10/12 + 17/12 - 42/12 = -7/12`
8. `2 3/4 - 5 1/3 + |11/(-6)| + 13/(-12) = 11/4 - 16/3 + 11/6 - 13/12 = 33/12 - 64/12 + 22/12 - 13/12 = -11/6`
9. `2 5/4 - 3 1/2 + |-1/3| - 1 2/5 = 13/4 - 7/2 + 1/3 - 7/5 = 195/60 - 210/60 + 20/60 - 84/60 = -79/60`
10. `(-1)/7 - 1 1/14 + |-5/2| - |-4/3| = (-1)/7 - 15/14 + 5/2 - 4/3 = (-6)/42 - 45/42 + 105/42 - 56/42 = -1/21`
