What form of art is used to decorate the floor in front of the house?
Find the HCF of \( \frac{2}{9} \), \( \frac{16}{81} \), \( \frac{32}{117} \) and \( \frac{54}{189} \).
\( \frac{8}{8483} \)
\( \frac{4}{1899} \)
\( \frac{2}{7371} \)
\( \frac{4}{6459} \)