For an article, it takes Xiao Ming 50 minutes to type 24 characters per minute, and how many minutes does it take Mr. Wang to type 60 characters per minute.
一篇文章，小明每分钟打24个字，需要打50分钟，王老师每分钟打60个字，需要多少分钟．
<gadget id="calculator">50 / 60</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">24 * (5/6)</gadget>
<output>20</output>

<result>20</result>