Fold a circular piece of paper in half, then fold it in half again, the paper is folded into 4 parts of the same size, each part is (1/4) of the circular piece of paper, how many circles are there?
把一张圆形纸片对折、再对折，纸片被折成了同样大小的4部分，每一部分都是圆形纸片的(1/4)，是多少个圆纸片．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>