5-(2 1/3+1 5/6):(2 3/4-3 8/9)= 8 27/41
1) 2 1/3+1 5/6= 2 2/6 + 1 5/6= 3 7/6= 4 1/6
2) 2 3/4-3 8/9= 2 27/36 - 3 32/36= - 1 5/36
3) 4 1/6 : (-1 5/36) = 4 6/36 : (- 41/36) = 150/36 * (-36/41) = - 150/41= - 3 27/41
4) 5 - (-3 27/41) = 5 + 3 27/41= 8 27/41