Dissolve 25 grams of salt in 100 grams of water, the salt accounts for ((())/(())).
把25克盐溶在100克水中，盐占盐水的((())/(()))．
<gadget id="calculator">100 + 25</gadget>
<output>125</output>

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

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