Put 30 grams of sugar into 70 grams of water, how much sugar accounts for the sugar water.
把30克糖放入70克水中，糖占糖水的多少．
<gadget id="calculator">30 + 70</gadget>
<output>100</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>