Draw the largest circle in a rectangle. It is known that the circumference of this circle is 18.84 centimeters. What is the width of this rectangle in decimeters?
在一个长方形里画一个最大的圆，已知这个圆的周长是18.84厘米，这个长方形的宽是多少分米．
<gadget id="calculator">18.84 / 3.14</gadget>
<output>6</output>

<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

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