Fangfang reads a book. She reads 30 pages on the first day, and on the second day (2/3) there are 5 more pages. In two days, she reads the pages of the whole book (5/17). How many pages are there.
芳芳看一本书，第一天看了30页，第二天看的是第一天的(2/3)还多5页，两天看了全书页数的(5/17)，全书共有多少页．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">30 * (2/3)</gadget>
<output>20</output>

<gadget id="calculator">20 + 5 + 30</gadget>
<output>55</output>

<gadget id="calculator">5 / 17</gadget>
<output>5/17 = around 0.294118</output>

<gadget id="calculator">55 / (5/17)</gadget>
<output>187</output>

<result>187</result>