\(\frac{12}{47}\)và \(\frac{19}{77}\)
MC(47 và 77)= 3619
Ta có: \(\frac{12}{47}=\frac{12.47}{47.47}=\frac{564}{3619}\)
\(\frac{19}{77}=\frac{19.47}{77.47}=\frac{893}{3619}\)
Suy ra : \(\frac{564}{3619}< \frac{893}{3619}\)
Hoặc \(\frac{893}{3619}>\frac{564}{3619}\)
Vậy : \(\frac{12}{47}< \frac{19}{77}\)
Hay : \(\frac{19}{77}>\frac{12}{47}\)