Dissolve 9 grams of sugar in 91 grams of water, what is the sugar content of the sugar water?
把9克糖溶解在91克水中，糖水的含糖率为多少．
<gadget id="calculator">91 + 9</gadget>
<output>100</output>

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

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(9/100) * 1</gadget>
<output>9/100 = around 0.09</output>

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