Here is a list of fractions.
410102561512251435 \frac{4}{10} \quad \frac{10}{25} \quad \frac{6}{15} \quad \frac{12}{25} \quad \frac{14}{35} 104251015625123514One of these fractions is not equivalent to 25\displaystyle \frac{2}{5}52
Write down this fraction.