\(\left(\dfrac{2}{3}+\dfrac{1}{6}\right):\dfrac{5}{4}+\left(\dfrac{1}{4}+\dfrac{3}{8}\right):\dfrac{5}{2}\)
=\(\left(\dfrac{4}{6}+\dfrac{1}{6}\right):\dfrac{5}{4}+\left(\dfrac{2}{8}+\dfrac{3}{8}\right):\dfrac{5}{2}\)
=\(\dfrac{5}{6}:\dfrac{5}{4}+\dfrac{5}{8}:\dfrac{5}{2}\)
=\(\dfrac{20}{30}+\dfrac{10}{40}\)
=\(\dfrac{2}{3}+\dfrac{1}{4}\)
=\(\dfrac{8}{12}+\dfrac{3}{12}\)
=\(\dfrac{11}{12}\)
\((\dfrac{2}{3}+\dfrac{1}{6}):\dfrac{5}{4}+(\dfrac{1}{4}+\dfrac{3}{8}):\dfrac{5}{2}=\dfrac{5}{6}:\dfrac{5}{4}+\dfrac{5}{8}:\dfrac{5}{2}=\dfrac{10}{15}+\dfrac{2}{8}=\dfrac{11}{12}\)
