Question

Thực hiện phép tính:

\(\dfrac{4,5:\left[47,375-\left(26\dfrac{1}{3}-18.0,75\right).2,4:0,88\right]}{17,81:1,37-23\dfrac{2}{3}:1\dfrac{5}{6}}\)

Tính giúp mình nhanh chóng nha!

Answer 1

\(\dfrac{4,5:\left[47,375-\left(26\dfrac{1}{3}-18.0,75\right).2,4:0,88\right]}{17,81:1,37-23\dfrac{2}{3}:1\dfrac{5}{6}}\)

\(=\dfrac{\dfrac{9}{2}:\left[\dfrac{379}{8}-\left(\dfrac{79}{3}-\dfrac{27}{2}\right).\dfrac{30}{11}\right]}{13-\dfrac{71}{3}.\dfrac{6}{11}}\)

\(=\dfrac{\dfrac{9}{2}:\left[\dfrac{379}{8}-\dfrac{77}{6}.\dfrac{30}{11}\right]}{13-\dfrac{142}{11}}\)

\(=\dfrac{\dfrac{9}{2}:\left[\dfrac{397}{8}-35\right]}{\dfrac{1}{11}}\)

\(=\left(\dfrac{9}{2}:\dfrac{99}{8}\right):\dfrac{1}{11}\)

\(=\dfrac{4}{11}.11=4\)