There are 120 pages in a story book, Xiaohua has read (3/5), how many pages are left?
一本故事书共有120页，小华看了(3/5)，还剩多少页没有看？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">120 * (2/5)</gadget>
<output>48</output>

<result>48</result>