So sánh: \(\frac{72}{73}\) và \(\frac{58}{99}\).
BL:
\(\left[\begin{matrix}\frac{72}{73}=\frac{7128}{7227}\\\frac{58}{99}=\frac{4234}{7227}\end{matrix}\right.\)
\(\Rightarrow\frac{7128}{7227}>\frac{4234}{7227}\left(7128>4234\right)\)
hay \(\frac{72}{73}>\frac{58}{99}\).
Vậy \(\frac{72}{73}>\frac{58}{99}.\)
