Ta có: \(\frac{1717}{8585}=\frac{17.101}{85.101}=\frac{17}{85}=\frac{1}{5}=\frac{13}{65}\)
\(\frac{1313}{5151}=\frac{13.101}{51.101}=\frac{13}{51}\)
Vì \(\frac{13}{65}< \frac{13}{51}\) nên \(\frac{1717}{8585}< \frac{1313}{5151}\)
Ta có :
\(\frac{1717}{8585}=\frac{1717:1717}{8585:1717}=\frac{1}{5}\);
\(\frac{1313}{5151}=\frac{1313:101}{5151:101}=\frac{13}{51}\)
Vì : 1/5 = 0,2 và 13/51 = 0,25...
=> 1717/8585 < 1313/5151