Zhang Qiang read a story book, read (1/3) of the whole book, and there are 48 pages left, how many pages have been read?
张强读一本故事书，读了全书的(1/3)，还剩48页，读了多少页？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">48 / (2/3)</gadget>
<output>72</output>

<gadget id="calculator">72 * (1/3)</gadget>
<output>24</output>

<result>24</result>