Question

Tính bằng hai cách

{\(\dfrac{5}{2}\) + \(\dfrac{17}{12}\)} : \(\dfrac{3}{2}\)

Answer 1

\(\left(\dfrac{5}{2}+\dfrac{17}{12}\right):\dfrac{3}{2}=\dfrac{47}{12}.\dfrac{2}{3}=\dfrac{47}{18}\\ \left(\dfrac{5}{2}+\dfrac{17}{12}\right):\dfrac{3}{2}=\left(\dfrac{5}{2}+\dfrac{17}{12}\right).\dfrac{2}{3}=\dfrac{5}{2}.\dfrac{2}{3}+\dfrac{17}{12}.\dfrac{2}{3}=\dfrac{5}{3}+\dfrac{17}{18}=\dfrac{47}{18}\)

Answer 2

C1: _{^{\(\left(\dfrac{5}{2}+\dfrac{17}{12}\right):\dfrac{3}{2}=\dfrac{47}{12}:\dfrac{3}{2}=\dfrac{47}{18}\)}}

C2: _{^{\(\left(\dfrac{5}{2}+\dfrac{17}{12}\right):\dfrac{3}{2}=\dfrac{5}{2}:\dfrac{3}{2}+\dfrac{17}{12}:\dfrac{3}{2}=\dfrac{5}{3}+\dfrac{17}{18}=\dfrac{47}{18}\)}}