A rope is cut into two pieces, the first piece is (3/5) meters, and the second piece is the full length (3/5), what is the total length of this rope in meters?
一根绳子剪成两段，第一段(3/5)米，第二段是全长的(3/5)，这根绳子全长多少米．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) / (2/5)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>