A book has 420 pages in total, Xiao Pang has already read 205 pages, and the rest reads 5 pages a day, how many days will it take to finish reading them all?
一本书共420页，小胖已经看了205页，剩下的每天看5页，还要几天才能全部看完？
<gadget id="calculator">420 - 205</gadget>
<output>215</output>

<gadget id="calculator">215 / 5</gadget>
<output>43</output>

<result>43</result>