Question

[Phạm Bảo Quyên]

5 9/10:3/2-(2 1/3x4 1/2 -2x2 1/3):7/4

Mấy phần mình cách ra và viết tiếp là hỗn số nhaaaaaa

Các bạn giải giúp mình nha

Answer 1

[Toru]

\(5\dfrac{9}{10}:\dfrac{3}{2}-\left(2\dfrac{1}{3}\times4\dfrac{1}{2}-2\times2\dfrac{1}{3}\right):\dfrac{7}{4}\)

\(=\dfrac{59}{10}:\dfrac{3}{2}-\left(\dfrac{7}{3}\times\dfrac{9}{2}-2\times\dfrac{7}{3}\right):\dfrac{7}{4}\)

\(=\dfrac{59}{10}\cdot\dfrac{2}{3}-\left[\dfrac{7}{3}\times\left(\dfrac{9}{2}-2\right)\right]:\dfrac{7}{4}\)

\(=\dfrac{59}{15}-\left(\dfrac{7}{3}\times\dfrac{5}{2}\right):\dfrac{7}{4}\)

\(=\dfrac{59}{15}-\dfrac{35}{6}\cdot\dfrac{4}{7}\)

\(=\dfrac{59}{15}-\dfrac{10}{3}\)

\(=\dfrac{59}{15}-\dfrac{50}{15}\)

\(=\dfrac{9}{15}\)

\(=\dfrac{3}{5}\)

\(Toru\)

Answer 2

[Võ Quang Huy]

ok