[+ 6 and 1 / 4] + [+ 1 / 2] + [- 6.25] + [+ 1 / 3] + [- 7 / 9] + [- 5 / 6]=

[+ 6 and 1 / 4] + [+ 1 / 2] + [- 6.25] + [+ 1 / 3] + [- 7 / 9] + [- 5 / 6]=

[+ 6 and 1 / 4] + [+ 1 / 2] + [- 6.25] + [+ 1 / 3] + [- 7 / 9] + [- 5 / 6] = 25 / 4 + 1 / 2-25 / 4 + 1 / 3-7 / 9-5 / 6 = - 7 / 9