\(\left[\frac{3}{8} - \left(\frac{4}{5} \times \frac{3}{4} \right) + \left( \frac{2}{3} \times \frac{6}{7}\right) + \frac{5}{6}\right] \) \(\frac{1}{3}\) యొక్క విలువ కనుగొనండి?
1
\(\dfrac{991}{2520}\)
2
\(\dfrac{2520}{991}\)
3
\({91}\over52\)
4
\(\dfrac{234}{345}\)