Type a document, A takes 40 minutes to complete it, and B takes 50 minutes to complete it, what is A’s work rate than B’s
打一份文件，甲用40分钟完成，乙用50分钟完成，甲的工作率是乙的多少
<gadget id="calculator">1 / 40</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">1 / 50</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">(1/40) / (1/50)</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>