The ratio of the circumference of the large circle to the circumference of the small circle is 3:2. What is the area of the small circle equal to the area of the large circle?
大圆周长与小圆周长的比是3：2，小圆面积是大圆面积的多少
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>