A square is divided into 5 equal rectangles. The perimeter of each rectangle is 80 cm. What is the perimeter of the square in cm?
一个正方形被分成了5个相等的长方形，每个长方形的周长都是80厘米，求正方形的周长是多少厘米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 2</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 + (2/5)</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">80 / (12/5)</gadget>
<output>100/3 = around 33.333333</output>

<gadget id="calculator">(100/3) * 4</gadget>
<output>400/3 = around 133.333333</output>

<result>400/3 = around 133.333333</result>