Xiaoxiao borrowed a storybook with 420 pages in total, and she read 56 pages in 8 days. At this speed, how many days can she finish reading?
笑笑借了一本故事书共420页，她8天看了56页，照这样的速度，她多少天可以看完？
<gadget id="calculator">56 / 8</gadget>
<output>7</output>

<gadget id="calculator">420 / 7</gadget>
<output>60</output>

<result>60</result>