\(\dfrac{69}{75}=\dfrac{1791}{1950}\)
\(\dfrac{21}{26}=\dfrac{1575}{1950}\)
=> 69/75 lớn nhất
\(\dfrac{69}{75}=\dfrac{1791}{1950}\)
\(\dfrac{21}{26}=\dfrac{1575}{1950}\)
\(\dfrac{1791}{1950}>\dfrac{1575}{1950}\)
Vậy nên: \(\dfrac{69}{75}>\dfrac{21}{26}\)