Put 10 grams of salt in 240 grams of water, how much is the salt in the salt water?
在240克水中放入10克盐，盐占盐水的多少．
<gadget id="calculator">240 + 10</gadget>
<output>250</output>

<gadget id="calculator">10 / 250</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>