\(\dfrac{-5}{2}-\left(\dfrac{-7}{2}-\dfrac{7}{4}\right):\left(\dfrac{-7}{3}\right)-\left(\dfrac{-7}{3}\right)-\left(2021\right)^0\)

\(\dfrac{-5}{7}.\dfrac{4}{13}+\dfrac{-15}{3}.\dfrac{-5}{7}-\dfrac{-5}{7}.\dfrac{2}{13}\)

\(2\dfrac{1}{8}-\dfrac{11}{6}-\dfrac{2}{-9}\)