Замените равенство \(4 \cdot 25 = 5 \cdot 20\) пропорцией

• \(\frac45=\frac{20}{25}\)
• \(\frac{4}{25}=\frac{5}{20}\)
• \(\frac{25}5=\frac{20}4\)
• \(\frac54=\frac{25}{20}\)