Xiao Ming walks (1/20) kilometers in (4/5) minutes, how many minutes does it take him to walk (4/5) kilometers.
小明(4/5)分钟步行(1/20)千米，他步行(4/5)千米需要多少分钟．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) / (4/5)</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">(4/5) / (1/16)</gadget>
<output>64/5 = around 12.8</output>

<result>64/5 = around 12.8</result>