\(x\)=\(\frac{69.125}{115}\)=\(75\)
\(\frac{x}{125}=\frac{69}{115}\)
\(\frac{x}{125}=\frac{3}{5}\)
\(\frac{x}{125}=\frac{75}{125}\)
\(\Rightarrow x=75\)
125:25=5
115:5=23
69:23=3
3*25=75
vậy x = 75
\(\frac{x}{125}=\frac{69}{115}\)
\(115x=69.125\)
\(115x=8625\)
\(x=8625:115\)
\(x=75\)
Vậy x = 75