1. (6 points) $96 \times 15 \div(45 \times 16)=2$.
【Solution】Solve: $96 \times 15 \div(45 \times 16)$,
$$
\begin{array}{l}
=96 \times 15 \div 45 \div 16, \\
=(96 \div 16) \times(15 \div 45), \\
=6 \times \frac{1}{3}, \\
=2 ;
\end{array}
$$

Therefore, the answer is: 2 .