Three friends arranged a party. Tanveer paid \( \frac{2}{3} \) as much as Yusuf paid. Yusuf paid \( \frac{1}{2} \) as much as Sachin paid. The fraction of the total expenditure by Yusuf was:
\( \frac{2}{11} \)
\( \frac{3}{11} \)
\( \frac{7}{11} \)
\( \frac{5}{11} \)
Simplify 1.8 + 2 × \(\frac{3}{2}\times\frac{1}{2}\left\{\frac{2}{5}\div\left(\frac{3}{5}\times\frac{2}{3}\right)\times\frac{3}{2}\right\}\) − 1}