\(=\dfrac{1}{3}-\dfrac{3}{4}+\dfrac{3}{5}+\dfrac{1}{72}-\dfrac{2}{9}-\dfrac{1}{30}+\dfrac{1}{15}\)
\(=\left(\dfrac{1}{3}+\dfrac{3}{5}+\dfrac{1}{15}\right)+\left(-\dfrac{3}{4}-\dfrac{2}{9}+\dfrac{1}{72}\right)-\dfrac{1}{30}\)
\(=\dfrac{5+9+1}{15}+\dfrac{-54-16+1}{72}-\dfrac{1}{30}\)
\(=\dfrac{29}{30}+\dfrac{-69}{72}=\dfrac{1}{120}\)