On average, every 100 grams of seawater contains 5 grams of salt. What percentage of sea water is salt?
平均每100克海水中含盐5克．盐占海水的几分之几？
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>