-2-5/8
-3/4-1
1-3/7
-4+2/9
2-5/8
-3/4+1
-1-3/7
-4-2/9

- 2 - 5/8 = - 2 5/8- 3/4 - 1 = - 1 3/41 - 3/7 = 7/7 - 3/7 = 4/7- 4 + 2/9 = - (4 - 2/9) = - (3 9/9 - 2/9) = - 3 7/92 - 5/8 = 1 8/8 - 5/8 = 1 3/8- 3/4 + 1 = 1 - 3/4 = 4/4 - 3/4 = 1/4- 1 - 3/7 = - 1 3/7- 4 - 2/9 = - 4 2/9