If 5 kg of salt is put into 200 kg of water, what is the weight of the salt in the salt water?
如果把5千克盐放入200千克水中，那么盐的重量占盐水的多少
<gadget id="calculator">200 + 5</gadget>
<output>205</output>

<gadget id="calculator">5 / 205</gadget>
<output>1/41 = around 0.02439</output>

<result>1/41 = around 0.02439</result>