Wang Hong divided a 1-meter-long rope into 3 sections, the first section was (1/8) meter long, and the second section was (3/8) meter long. How long is the third section?
王宏把一条1米长的绳子分成3段，第一段长(1/8)米，第二段长(3/8)米．第三段长多少米．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (1/8) - (3/8)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>