\(\left(1\frac{1}{9}\times 1\frac{1}{20}\div\frac{21}{38}-\frac{1}{3}\right)\times\frac{3}{8}-\left(\frac{2}{3}\div\frac{3}{4}\ of\ \frac{5}{9}\right)\div3\frac{1}{5}+1\frac{1}{6}\) ಆಗಿದೆ:
1
\(1\frac{1}{2}\)
2
\(1\frac{1}{3}\)
3
\(1\frac{1}{6}\)
4
\(1\frac{1}{4}\)