Ratios are equivalent to the ratio so lets multiply by 3 numbers to get 3 new ratios. Lets do it:-
\(\frac{5*2}{7*2} = \frac{10}{14}\)
\(\frac{5*3}{7*3}= \frac{15}{21}\)
\(\frac{5*5}{7*5}= \frac{25}{35}\)
So, 3 ratio that are equivalent to
\(\frac{10}{14}\)
\(\frac{15}{21}\)
\(\frac{25}{35}\)
Hope I helped ya!!