The ratio of the area of the small circle to the area of the large circle is 9:25, what is the circumference of the small circle to the circumference of the large circle
小圆面积和大圆面积的比是9：25，小圆周长是大圆周长的多少
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>