Reducing the rectangle by 1:5 means reducing the area of the rectangle to its original size
按1：5将长方形缩小，就是将长方形的面积缩小到原来的多少
<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>