Dissolve 5 grams of sugar in 20 grams of water, how much sugar accounts for the sugar water
把5克糖溶化在20克水里，糖占糖水的多少
<gadget id="calculator">5 + 20</gadget>
<output>25</output>

<gadget id="calculator">5 / 25</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>