The ratio of sugar to water is 1:9, how many grams of sugar are in 100 grams of sugar water.
糖和水的比是1：9，100克糖水中含糖多少克．
<gadget id="calculator">1 + 9</gadget>
<output>10</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">100 * (1/10)</gadget>
<output>10</output>

<result>10</result>