What is the equivalent of (+ 6 and 1 / 4) + (+ 1 / 2) + (- 6.25) + (+ 1 / 3) + (- 7 / 9) + (- 5 / 6)

What is the equivalent of (+ 6 and 1 / 4) + (+ 1 / 2) + (- 6.25) + (+ 1 / 3) + (- 7 / 9) + (- 5 / 6)

The original formula = (6 and 1 / 4) + (- 6.25) + (1 / 2) + (1 / 3) + (- 5 / 6) + (- 7 / 9) = 5 / 6 + (- 5 / 6) + (- 7 / 9) = 7 / 9