0,5+6/17*(2 2/3-1 1/4)помогите плиз!

[latex]0,5+ \frac{6}{17}(2 \frac{2}{3}-1 \frac{1}{4})=0,5+ \frac{6}{17}( \frac{8}{3}- \frac{5}{4})=0,5+ \frac{6}{17}( \frac{8*4-5*3}{3})= \\ \\ 0,5+ \frac{6}{17}( \frac{17}{3})=0,5+2=2,5[/latex]