\(-\dfrac{17}{14}:\left(\dfrac{-34}{7}\right)+\dfrac{10}{3}\left(\dfrac{1}{5}-\dfrac{3}{4}\right)-\dfrac{6}{5}\left(\dfrac{1}{3}-\dfrac{5}{6}\right)\\ =-\dfrac{17}{14}.\left(\dfrac{-7}{34}\right)+\dfrac{10}{3}.\left(\dfrac{-11}{20}\right)-\dfrac{6}{5}.\left(\dfrac{-1}{2}\right)\\ =\dfrac{1}{4}-\dfrac{11}{6}+\dfrac{3}{5}\\ =-\dfrac{59}{60}\)