There is a book, Xiaohua read 25% of it on the first day, and (1/3) of it on the second day, and there are 120 pages left. How many pages does this book have?
有一本书，小华第一天看了它的25%，第二天看了它的(1/3)，还剩120页没有看，这本书有多少页？
<gadget id="calculator">25 / 100</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">120 / (5/12)</gadget>
<output>288</output>

<result>288</result>