Dissolve 20 grams of liquid medicine in 200 grams of water, how much water accounts for the liquid medicine
把20克药液溶入200克水中，水占药水的多少
<gadget id="calculator">20 + 200</gadget>
<output>220</output>

<gadget id="calculator">200 / 220</gadget>
<output>10/11 = around 0.909091</output>

<result>10/11 = around 0.909091</result>