Put 5 grams of pesticide into 20 grams of water, how much is the medicine in the potion
把5克农药放入20克水中，药占药水的多少
<gadget id="calculator">20 + 5</gadget>
<output>25</output>

<gadget id="calculator">5 / 25</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>