Ta có :
\(1-\frac{38}{133}=\frac{133}{133}-\frac{38}{133}=\frac{95}{133}=\frac{5}{7}\)
\(1-\frac{129}{344}=\frac{344}{344}-\frac{129}{344}=\frac{215}{344}=\frac{5}{8}\)
Vì \(\frac{5}{7}>\frac{5}{8}\) nên \(\frac{38}{133}< \frac{129}{344}\)
\(\Rightarrow\)\(\frac{38}{-133}>\frac{-129}{344}\)
Vậy \(\frac{38}{-133}>\frac{-129}{344}\)