Put 40 grams of sugar into 160 grams of water, how much sugar accounts for the sugar water.
把40克糖放进160克水中，糖占糖水的多少．
<gadget id="calculator">160 + 40</gadget>
<output>200</output>

<gadget id="calculator">40 / 200</gadget>
<output>1/5 = around 0.2</output>

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