For a bundle of wires, 1/4 of the full length is used for the first time, and 35% of the full length is used for the second time, leaving 32.8 meters. How long is this bundle of wires?
一捆电线，第一次用去全长的(1/4)，第二次用去全长的35%，还剩下32.8米．这捆电线原来长多少米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 - (1/4) - (7/20)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">32.8 / (2/5)</gadget>
<output>82</output>

<result>82</result>