3

原式=\[\frac{\left[ \left( 16+\frac{8}{247} \right)\times \frac{19}{8}+\left( 12+\frac{4}{285} \right)\times \frac{19}{4} \right]\times 19.98}{6.66\times \left( 96-\frac{167}{195} \right)}\]
\[=\frac{\left( 16\times \frac{19}{8}+\frac{8}{247}\times \frac{19}{8}+12\times \frac{19}{4}+\frac{4}{285}\times \frac{19}{4} \right)\times 3}{95\frac{28}{195}}\]