In 100 grams of water, add 20 grams of sugar, this is how much sugar accounts for the sugar water.
在100克水中，加入20克糖，这是糖占糖水的多少．
<gadget id="calculator">100 + 20</gadget>
<output>120</output>

<gadget id="calculator">20 / 120</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>