A rectangular orchard is 15 meters wide and has an area of 357 square meters. If a fence is built around the orchard, how many meters will the fence be?
一个长方形果园，宽是15米，面积是357平方米．如果在这个果园四周围上栅栏，则需栅栏多少米？
<gadget id="calculator">357 / 15</gadget>
<output>119/5 = around 23.8</output>

<gadget id="calculator">(119/5) + 15</gadget>
<output>194/5 = around 38.8</output>

<gadget id="calculator">(194/5) * 2</gadget>
<output>388/5 = around 77.6</output>

<result>388/5 = around 77.6</result>