Add a percent sign after 20, the number is reduced by how many times
在20后面添上百分号，这个数就是缩小多少倍
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) / 20</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">1 / (1/100)</gadget>
<output>100</output>

<result>100</result>