Add 5g of sugar to 10g of water, what is the percentage of sugar in the sugar water
把5g糖加到10g水中，糖占糖水的多少
<gadget id="calculator">10 + 5</gadget>
<output>15</output>

<gadget id="calculator">5 / 15</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>