\(\dfrac{1}{2}< \dfrac{1+1}{2+1}=\dfrac{2}{3}\)
\(\dfrac{2}{3}< \dfrac{2+1}{3+1}=\dfrac{3}{4}\)
\(\dfrac{3}{4}< \dfrac{3+1}{4+1}=\dfrac{4}{5}\)
\(\dfrac{4}{5}< \dfrac{4+1}{5+1}=\dfrac{5}{6}\)
\(\dfrac{5}{6}< \dfrac{5+1}{6+1}=\dfrac{6}{7}\)
\(\)Vậy \(\dfrac{1}{2}< \dfrac{2}{3}< \dfrac{3}{4}< \dfrac{4}{5}< \dfrac{5}{6}< \dfrac{6}{7}\)