quy đồng:
8/9=8x7/9x7=56/63 ; 6/7=6x9/7x9=54/63
so sánh:
56/63 > 54/63 nên 8/9 > 6/7
tick nha
Quy đồng
\(\frac{8}{9}=\frac{8x7}{9x7}=\frac{56}{63}\), \(\frac{6}{7}=\frac{6x9}{7x9}=\frac{54}{63}\)
So sánh:
\(\frac{56}{63}>\frac{54}{63}\)nên \(\frac{8}{9}>\frac{6}{7}\)