Dissolve 25 grams of salt in 100 grams of water, what is the weight of the salt in the salt water
把25克盐溶化在100克水中，盐的重量占盐水的多少
<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>