\(\dfrac{7}{15};\dfrac{14}{30};\dfrac{28}{60}\)
TSC : 4
\(\dfrac{1}{3}=\dfrac{4}{12};\dfrac{4}{5}\)
\(\dfrac{4}{12}< \dfrac{4}{11}< \dfrac{4}{10}< \dfrac{4}{9}< \dfrac{4}{8}< \dfrac{4}{7}< \dfrac{4}{6}< \dfrac{4}{5}\)
\(\Rightarrow\) 3 phân số đó là : \(\dfrac{4}{9};\dfrac{4}{8};\dfrac{4}{7}\)