Put 9 grams of sugar in 91 grams of water. After melting, how much sugar accounts for the sugar water?
将9克糖放到91克水中，溶化后，糖占糖水的多少．
<gadget id="calculator">9 + 91</gadget>
<output>100</output>

<gadget id="calculator">9 / 100</gadget>
<output>9/100 = around 0.09</output>

<result>9/100 = around 0.09</result>