Put 50 grams of pesticide into 450 grams of water, what is the drug content of the obtained liquid medicine?
把50克农药放入450克水中，得到的药水的含药量是多少．
<gadget id="calculator">50 + 450</gadget>
<output>500</output>

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

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