10 grams of salt is dissolved in 200 grams of water, what is the percentage of salt in the salt water
10克盐溶解于200克水中，盐占盐水的多少
<gadget id="calculator">10 + 200</gadget>
<output>210</output>

<gadget id="calculator">10 / 210</gadget>
<output>1/21 = around 0.047619</output>

<result>1/21 = around 0.047619</result>