\(\dfrac{12}{5};\dfrac{-7}{3};\dfrac{-11}{4}\) MSC 60
\(\dfrac{12}{5}=\dfrac{12\cdot12}{5\cdot12}=\dfrac{144}{60}\)
\(\dfrac{-7}{3}=\dfrac{-7\cdot20}{3\cdot20}=\dfrac{-140}{60}\)
\(\dfrac{-11}{4}=\dfrac{-11\cdot15}{4\cdot15}=\dfrac{-165}{60}\)
\(\dfrac{144}{60}>\dfrac{-140}{60}>\dfrac{-165}{60}\)
=> \(\dfrac{12}{5}>\dfrac{-7}{3}>\dfrac{-11}{4}\)
mẫu số chung là :60
vậy nên lấy 60:5
60:3
60:4
đc bao nhiêu r nhân vs mẫu r ghi mẫu là 60