My younger brother reads a storybook, and he has already read 72 pages, which is 63 pages more than he has not read. How many times has he read more pages than he has not read?
弟弟看一本故事书，已经看了72页，比没看的多63页，看的页数是没看的几倍？
<gadget id="calculator">72 - 63</gadget>
<output>9</output>

<gadget id="calculator">72 / 9</gadget>
<output>8</output>

<result>8</result>