Put 25 grams of salt into 75 grams of water, what is the percentage of salt in the salt water?
把25克盐放入75克水中，盐占盐水的多少．
<gadget id="calculator">25 + 75</gadget>
<output>100</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>