Xiao Xing reads a story book. He reads (1/5) of the whole book on the first day and (1/6) of the whole book on the second day. He reads 33 pages in total in two days. How many pages does this book have?
小星看一本故事书，第一天看了全书的(1/5)，第二天看了全书的(1/6)，两天共看了33页．这本书有多少页？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) + (1/6)</gadget>
<output>11/30 = around 0.366667</output>

<gadget id="calculator">33 / (11/30)</gadget>
<output>90</output>

<result>90</result>