Xiaoqiang bought a book, read 2/5 of the whole book on the first day, maybe read the remaining 5/8 on the second day, and there are 36 pages left, how many pages does this book have?
小强买了一本书，第一天看了全书的2/5，第二天可能看了剩下的5/8，还有36页没看，这本书一共有多少页？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">36 / (3/8) / (3/5)</gadget>
<output>160</output>

<result>160</result>