Put 10 grams of sugar into 40 grams of water, how much sugar accounts for the sugar water
把10克糖放入40克水中，糖占糖水的多少
<gadget id="calculator">10 + 40</gadget>
<output>50</output>

<gadget id="calculator">10 / 50</gadget>
<output>1/5 = around 0.2</output>

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