need help with this problem please

\(13+\left(\dfrac{5}{8}-\dfrac{1}{4}\right)\times \dfrac{4}{5}\div \dfrac{3}{5}-8\\ =13-8+\left(\dfrac{5}{8}-\dfrac{1}{4}\right)\times \dfrac{4}{5}\div \dfrac{3}{5}\\ =13-8+\left(\dfrac{5}{8}-\dfrac{2}{8}\right)\times \dfrac{4}{5}\times \dfrac{5}{3}\\ =5 + \dfrac{3}{8}\times\dfrac{4}{5}\times \dfrac{5}{3}\\ =5 + \dfrac{1}{2}\\ =5\dfrac{1}{2}\text{ OR }\dfrac{11}{2}\text{ OR }5.5\)

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