Bấm máy tín ik nha pp :)))))))))))))))))))))))))
\(\dfrac{2}{3}\div\dfrac{3}{4}=\dfrac{2}{3}\times\dfrac{4}{3}=\dfrac{8}{9}\)
\(\dfrac{1}{2}\div\dfrac{3}{4}=\dfrac{1}{2}\times\dfrac{4}{3}=\dfrac{4}{6}=\dfrac{2}{3}\)
\(\dfrac{2}{3}\div\dfrac{4}{5}=\dfrac{2}{3}\times\dfrac{5}{4}=\dfrac{10}{12}=\dfrac{5}{6}\)
\(\dfrac{1}{6}\div\dfrac{1}{3}=\dfrac{1}{6}\times\dfrac{3}{1}=\dfrac{3}{6}=\dfrac{1}{2}\)