質問: Giá trị của 10/17−5/13−−7/17−8/13+11/25 bằng
回答: $\frac{10}{17}$ – $\frac{5}{13}$ – $\frac{-7}{17}$ – $\frac{8}{13}$ + $\frac{11}{25}$ = ($\frac{10}{17}$ – $\frac{-7}{17}$) – ($\frac{5}{13}$ + $\frac{8}{13}$) + $\frac{11}{25}$ = 1 – 1 + $\frac{11}{25}$ = $\frac{11}{25}$