There are 5 liters of pineapple juice, pour it into a small bottle that can hold (1/4) liter, how many bottles can be filled.
有5升波萝汁，把它灌入能装(1/4)升的小瓶里，可以灌多少瓶．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">5 / (1/4)</gadget>
<output>20</output>

<result>20</result>