A comic book, Xiaojun read (1/4) of the whole book on the first day, and (1/3) of the whole book on the second day, and there are 25 pages left. How many pages does this book have?
一本连环画，小军第一天看了全书的(1/4)，第二天又看了全书的(1/3)，还剩下25页没有看，这本书一共有多少页？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">25 / (5/12)</gadget>
<output>60</output>

<result>60</result>