Put 40 grams of water into 60 grams of water, how much sugar accounts for the sugar water
把40克水放入60克水中，糖占糖水的多少
<gadget id="calculator">40 + 60</gadget>
<output>100</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>