Xiaoqian reads a 132-page story book, 15 pages a day, and now there are 12 pages left. How many days has Xiaoqian watched it?
小倩看一本132页的故事书，每天看15页，现在还剩12页没有看．小倩已经看了多少天？
<gadget id="calculator">132 - 12</gadget>
<output>120</output>

<gadget id="calculator">120 / 15</gadget>
<output>8</output>

<result>8</result>