vô số nha bạn

\(\dfrac{1}{5},\dfrac{2}{5},\dfrac{3}{5},\dfrac{4}{5}\)

\(\dfrac{2}{3}-\dfrac{3}{5}=\dfrac{10}{15}-\dfrac{9}{15}=\dfrac{1}{15}\)

\(\dfrac{4}{6}\) nha mấy bạn =\(\dfrac{2}{3}\) là sai vì bài này ko yêu cầu rút gọn

\(\dfrac{24}{28}=\dfrac{72}{54}=\dfrac{48}{36}=\dfrac{12}{9}=\dfrac{4}{3}\)

\(\dfrac{25}{75}=\dfrac{8}{24}=\dfrac{2}{6}=\dfrac{9}{27}=\dfrac{1}{3}\)

lx

\(\dfrac{1}{5},\dfrac{2}{5},\dfrac{3}{5},\dfrac{4}{5}\)

\(\dfrac{7}{12}=\dfrac{35}{60}\)

\(\dfrac{23}{20}=\dfrac{46}{60}\)

\(b,\dfrac{6}{27}vs\) \(c,\dfrac{14}{63}\)