\(\left(\dfrac{11}{4}.\dfrac{-5}{9}+\dfrac{4}{9}.\dfrac{11}{-4}\right).\dfrac{8}{33}\\ =\left(\dfrac{11}{4}.\dfrac{-5}{9}+\dfrac{-4}{9}.\dfrac{11}{4}\right).\dfrac{8}{33}\\ =\left[\dfrac{11}{4}\left(\dfrac{-5}{9}+\dfrac{-4}{9}\right)\right].\dfrac{8}{33}\\ =\dfrac{11}{4}.\left(-1\right).\dfrac{8}{33}\\ =\dfrac{-11}{4}.\dfrac{8}{33}\\ =-\dfrac{2}{3}\)
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