(2 1/6 - 3 3/8) * 24 + 1/18 : (- 3 3/4) = - 29 2/135
1) 2 1/6 - 3 3/8 = 2 4/24 - 3 9/24 = - 1 5/24
2) - 1 5/24 * 24 = - 29/24 * 24 = - 29
3) 1/18 : (- 3 3/4) = 1/18 : (- 15/4) = 1/18 * (- 4/15) = - (1*2)/(9*15) = - 2/135
4) - 29 + (- 2/135) = - 29 2/135