Xiao Ming intends to finish a 210-page novel in a week, but ends up reading 12 more pages a day. How many days can he actually finish it?
小明打算用一个星期的时间看完一本210页的小说，结果每天多看了12页，实际用多少天可以看完？
<gadget id="calculator">210 / 7</gadget>
<output>30</output>

<gadget id="calculator">30 + 12</gadget>
<output>42</output>

<gadget id="calculator">210 / 42</gadget>
<output>5</output>

<result>5</result>