\(\dfrac{3}{13} . \dfrac{6}{11} + \dfrac{3}{13} . \dfrac{0}{11} - \dfrac{3}{13} . \dfrac{4}{11} \)
\(= \dfrac{3}{13} . ( \dfrac{6}{11} + \dfrac{9}{11} - \dfrac{4}{11} )\)
\(= \dfrac{3}{13} . \dfrac{11}{11} \)
\(= \dfrac{3}{13} . 1\)
\(= \dfrac{3}{13}\)