The ratio of the radii of the large and small circles is 3:2, and the area of the large circle is larger than the area of the small circle.
大、小圆半径的比是3：2，大圆面积比小圆面积多多少．
<gadget id="calculator">125 / 100</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>