A piece of iron wire, cut off (4/5) meters for the first time, and cut off (3/5) meters for the second time, the remaining length is the same as the one cut off, how many meters is this iron wire originally?
一根铁丝，第一次剪下(4/5)米，第二次剪下(3/5)米，剩下的与剪去的一样长，这根铁丝原来有多少米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(4/5) + (3/5)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">(7/5) * 2</gadget>
<output>14/5 = around 2.8</output>

<result>14/5 = around 2.8</result>