Ta có\(\frac{-543}{546}=\frac{3-546}{546}=\frac{3}{546}-1\)
\(\frac{-789}{792}=\frac{3-792}{792}=\frac{3}{792}-1\)
Vì \(546< 792\Rightarrow\frac{1}{546}>\frac{1}{792}\Rightarrow\frac{3}{546}>\frac{3}{792}\Rightarrow\frac{3}{546}-1>\frac{3}{792}-1\)
Do đó \(\frac{-543}{546}>\frac{-789}{792}\)