20 grams of sugar is dissolved in 100 grams of water, how much sugar accounts for the sugar water
20克糖溶于100克水中，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>