For the sake of beauty, Xiaoli's mother is going to put a circle of lace on the edge of a circular tablecloth with a diameter of 1 meter, and the joint is 4 cm. At least how many meters of lace does Xiaoli's mother need to prepare.
为了美观，小丽妈妈准备在一块直径是l米的圆形桌布边缘镶上一圈花边，接头处4厘米，小丽妈妈至少需要准备多少米的花边．
<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">3.14 + (1/25)</gadget>
<output>3.18</output>

<result>3.18</result>