Dissolve 2 grams of salt in 100 grams of water, what is the percentage of salt in the salt water?
把2克盐溶在100克水中，盐占盐水的多少．
<gadget id="calculator">100 + 2</gadget>
<output>102</output>

<gadget id="calculator">2 / 102</gadget>
<output>1/51 = around 0.019608</output>

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