Dissolve 25 grams of table salt in 100 grams of water, what is the percentage of salt in the salt water
25克食盐溶解到100克水中，盐占盐水的多少
<gadget id="calculator">25 + 100</gadget>
<output>125</output>

<gadget id="calculator">25 / 125</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>