Put 1 gram of salt into 19 grams of water, what is the percentage of salt in the salt water
把1克盐放入19克水中，盐占盐水的多少
<gadget id="calculator">1 + 19</gadget>
<output>20</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>