Xiaohong reads an extracurricular book. On the first day, she reads 24 pages, accounting for 1/2 of the whole book. On the second day, she reads 37.5% of the whole book. How many pages are left?
小红读一本课外书，第一天读了24页，占全书的(1/2)，第二天读了全书的37.5%，还剩多少页没读？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">24 / (1/2)</gadget>
<output>48</output>

<gadget id="calculator">37.5 / 100</gadget>
<output>0.375</output>

<gadget id="calculator">48 * 0.375</gadget>
<output>18</output>

<gadget id="calculator">48 - 24 - 18</gadget>
<output>6</output>

<result>6</result>