5/20 and 12/20
1) Since we have 1/4 and 3/5 let's prime factorize those denominators:
2) So let's turn those fractions into equivalent ones (keeping the same ratio):
[tex]\begin{gathered} \frac{1}{4}\times\frac{5}{5}=\frac{5}{20} \\ \frac{3}{5}\times\frac{4}{4}=\frac{12}{20} \end{gathered}[/tex]
3) Hence the equivalent fractions are 5/20 and 12/20 since they keep the same ratio (1/4 and 3/5).
