(+25/4)+(+1/2)+(-6.25)+(+1/3)+(-7/9)+(-5/6)

(+25/4)+(+1/2)+(-6.25)+(+1/3)+(-7/9)+(-5/6)

(+25/4)+(+1/2)+(-6.25)+(+1/3)+(-7/9)+(-5/6)
Original formula = [(+ 25 / 4) + (- 6.25)] + [(+ 1 / 3) + (+ 1 / 2) + (- 5 / 6)] + (- 7 / 9)
=0+0+(-7/9)
=-7/9