Xiao Ming uses three iron wires to form a rectangle, a parallelogram and a trapezoid respectively. The perimeter of the rectangle is (8/15)m longer than the parallelogram, and the perimeter of the trapezoid is (2/15)m shorter than the parallelogram. The perimeter of the rectangle How many meters is the difference between the length and the trapezoid?
小明用三根铁丝分别围成了长方形、平行四边形和梯形，长方形的周长比平行四边形长(8/15)m，梯形的周长比平行四边行形短(2/15)m，长方形的周长与梯形相差多少米？
<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(8/15) + (2/15)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>