In simplifying ratios with fractions, below are the steps:
[tex] \frac{1}{2} : \frac{2}{5}[/tex]
1. Make sure that both fractions have same denominator. For this the least common denominator (LCD) is 10.
[tex] \frac{5}{10} : \frac{4}{10} [/tex]
2. Then multiply both sides with the common denominator which is 10.
[tex]10( \frac{5}{10}: \frac{4}{10} )[/tex]
3. The answer is:
[tex]5:4[/tex]