If 5 grams of sugar is dissolved in 20 grams of water, what is the concentration of the sugar solution in percent?
把5克糖溶解在20克水中，糖水溶液的百分比浓度为多少．
<gadget id="calculator">5 + 20</gadget>
<output>25</output>

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

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/5) * 1</gadget>
<output>1/5 = around 0.2</output>

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