Ta quy đồng
\(\frac{15}{301}=\frac{15.499}{301.499}=\frac{7485}{150199}\)
\(\frac{25}{499}=\frac{25.301}{499.301}=\frac{7525}{150199}\)
So sánh:
\(\frac{7485}{150199}< \frac{7525}{150199}\)
\(=>\frac{15}{301}< \frac{25}{499}\)
Vậy \(\frac{15}{301}< \frac{25}{499}\)