There are 20 small sticks in a pile, take out (1/4) of this pile of small sticks, how many sticks are taken out.
一堆小棒有20根，拿出这堆小棒的(1/4)，拿出了多少根．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<result>5</result>