105 grams of salt water contains 5 grams of salt, how much salt accounts for water.
105克盐水中含盐5克，盐占水的多少．
<gadget id="calculator">105 - 5</gadget>
<output>100</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

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