How many kilograms is 5% more than 20 kilograms?
比20千克多5%是多少千克．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 + (1/20)</gadget>
<output>21/20 = around 1.05</output>

<gadget id="calculator">20 * (21/20)</gadget>
<output>21</output>

<result>21</result>