Dissolve 2 grams of salt in 50 grams of water, what is the percentage of salt in the salt water?
把2克盐溶在50克水中，盐占盐水的多少．
<gadget id="calculator">2 + 50</gadget>
<output>52</output>

<gadget id="calculator">2 / 52</gadget>
<output>1/26 = around 0.038462</output>

<result>1/26 = around 0.038462</result>