Put 100 grams of medicinal powder into 5000 grams of water to make a pesticide, what percentage of the medicinal powder accounts for the pesticide?
把100克的药粉放入5000克的水中配成一种农药，药粉占农药的几分之几？
<gadget id="calculator">100 + 5_000</gadget>
<output>5_100</output>

<gadget id="calculator">100 / 5_100</gadget>
<output>1/51 = around 0.019608</output>

<result>1/51 = around 0.019608</result>