The ratio of sugar to water is 1:4, and sugar accounts for ((())/(())) of the sugar water; there are 50 grams of sugar, how many grams of this sugar water can be prepared.
糖和水的比为1：4，糖占糖水的((())/(()))；现有糖50克，可配制这种糖水多少克．
<gadget id="calculator">1 + 4</gadget>
<output>5</output>

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

<gadget id="calculator">50 / (1/5)</gadget>
<output>250</output>

<result>250</result>