Xiao Ming reads a book, reads 25% of the whole book on the first day, reads 56 pages on the second day, and has 16 pages left, how many pages does this book have?
小明看了一本书，第一天看了全书的25%，第二天看了56页，还剩16页没有看完，这本书共有多少页？
<gadget id="calculator">56 + 16</gadget>
<output>72</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">72 / (3/4)</gadget>
<output>96</output>

<result>96</result>