For a bundle of wires, the full length (1/4) is used for the first time, and the remaining (1/5) is used the next day, and there are still 108 meters left. How many meters is the bundle of wires in total?
一捆电线，第一次用去全长的(1/4)，第二天用去余下的(1/5)，这时还剩108米．这捆电线共长多少米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(3/4) * (1/5)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (1/4) - (3/20)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">108 / (3/5)</gadget>
<output>180</output>

<result>180</result>