(- 2000 5 / 6) + (- 1999 2 / 3) + (- 4000 2 / 3)

(- 2000 5 / 6) + (- 1999 2 / 3) + (- 4000 2 / 3)

(- 2000 5 / 6) + (- 1999 2 / 3) + (+ 4000 2 / 3) = - 2000 - 5 / 6 - 1999 - 2 / 3 + 4000 + 2 / 3 = - 2000 - 1999 + 4000 + 2 / 3 - 2 / 3 - 5 / 6 = 1 - 5 / 6 = 1 / 6 wuliangshou Buddha, Buddha says that the sea of bitterness is endless, and you can turn around! Benefactor, I see your bones are strange, your utensils are elegant