There are 50 grams of certain medicines in the laboratory. Mr. Li put these medicines in 450 grams of water to make a syrup. What percentage of the medicine is contained in the prepared syrup?
实验室有某种药品50克，李老师把这些药品放到450克水中，配制成药水，配成的药水中含药百分之几？
<gadget id="calculator">50 + 450</gadget>
<output>500</output>

<gadget id="calculator">50 / 500</gadget>
<output>1/10 = around 0.1</output>

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

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

<result>1/10 = around 0.1</result>