\(\dfrac{2021}{2022}\) và \(\dfrac{2020}{2021}\)
\(\dfrac{2021}{2022}=1-\dfrac{1}{2022}\)
\(\dfrac{2020}{2021}=1-\dfrac{1}{2021}\)
\(\text{Vì }\)\(\dfrac{1}{2022}>\dfrac{1}{2021}=>1-\dfrac{1}{2022}>1-\dfrac{1}{2021}=>\dfrac{2021}{2022}>\dfrac{2020}{2021}\)