Question

[Chíu Nu Xíu Xiu]

B=\(\frac{\frac{5}{22}+\frac{3}{13}-\frac{1}{2}}{\frac{4}{13}-\frac{2}{11}+\frac{3}{2}}\)

Answer 1

[Nguyễn Ngọc Sáng]

B=522+313−12413−211+32

 Đặt \(S=\frac{5}{22}+\frac{3}{13}-\frac{1}{2}\)

=> S= \(\frac{-6}{143}\)

Đặt \(H=\frac{4}{13}-\frac{2}{11}+\frac{3}{2}\)

=> H = \(\frac{465}{286}\)

Khi đó B = \(\frac{\frac{-6}{143}}{\frac{465}{286}}\)=\(\frac{-4}{155}\)