\(\frac{19}{26}>\frac{-21}{25}\)
Vi \(\frac{19}{26}\)la phan so duong
\(\frac{-21}{25}\)la phan so am
Em lôn đó
19/26 và 21/25
\(\frac{19}{26}=\frac{19\times25}{26\times25}\) \(\frac{21}{25}=\frac{21\times26}{25\times26}\)
Vi \(19\times25< 21\times26\)nen =>
\(\frac{19\times25}{26\times25}< \frac{21\times26}{25\times26}\)hay \(\frac{19}{26}< \frac{21}{25}\)