1 ton of beets can produce (4/25) tons of sugar, how many tons of beets are needed to produce 100 tons of sugar.
1吨甜菜可以制出(4/25)吨糖，生产100吨糖，需要甜菜多少吨．
<gadget id="calculator">4 / 25</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">100 / (4/25)</gadget>
<output>625</output>

<result>625</result>