Question

D=5/7x 40/11-5/11-117/7 giải hộ vs ạ 

Answer 1

\(D=\dfrac{5}{7}\cdot\dfrac{40}{11}-\dfrac{5}{11}-\dfrac{117}{7}\)

\(=\dfrac{5}{11}\left(\dfrac{40}{7}-5\right)-\dfrac{117}{7}\)

\(=\dfrac{5}{11}\cdot\dfrac{5}{7}-\dfrac{117}{7}=\dfrac{25}{77}-\dfrac{117}{7}=-\dfrac{1262}{77}\)