Now use 20 grams of sugar, mix sugar and water at a ratio of 1:4 to make sugar water, how many grams of sugar water can you get?
现在用20克糖，把糖和水按1：4，酿成糖水，可以得到糖水多少克．
<gadget id="calculator">4 + 1</gadget>
<output>5</output>

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

<gadget id="calculator">20 / (1/5)</gadget>
<output>100</output>

<result>100</result>