Giải:
Ta có:
\(2019< 2022\)
\(\Leftrightarrow\dfrac{2}{2019}>\dfrac{2}{2022}\)
\(\Leftrightarrow-\dfrac{2}{2019}< -\dfrac{2}{2022}\)
\(\Leftrightarrow1-\dfrac{2}{2019}< 1-\dfrac{2}{2022}\)
\(\Leftrightarrow\dfrac{2019-2}{2019}< \dfrac{2022-2}{2022}\)
\(\Leftrightarrow\dfrac{2017}{2019}< \dfrac{2020}{2022}\)
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