2 3/4 :1 5/6 + 1 7/8 :(1-5/8)*6 2/5=

[latex]2 \frac{3}{4} :1 \frac{5}{6} +1 \frac{7}{8} :( \frac{8}{8} - \frac{5}{8} )*6 \frac{2}{5} = 33.5\\ \\ 1) \frac{8-5}{8} = \frac{3}{8} \\ \\ 2) \frac{15}{8} * \frac{8}{3} =5 \\ \\ 3)5* \frac{32}{5} =32 \\ \\ 4) \frac{11}{4} * \frac{6}{11} = \frac{3}{2} =1.5 \\ \\ 5)1.5+32=33.5[/latex]