Discussion

The value of 56 ÷ [12 + 9 ÷ 3 - {8 + (18 of 2 ÷ 9) - (40 ÷ 5 of 2)}] + $\frac{27+{\displaystyle \frac{2}{5}} \mathrm{of} 75}{5+{\displaystyle \frac{2}{3}}\times (58-37)}$ is: