The two iron wires were originally the same length, now the first iron wire is cut off by 25 cm, and the second iron wire is cut off by 10 cm. At this time, (2/5) of the first iron wire is the same as (1/3) of the second iron wire long. What is the length of the first wire in centimeters?
两根铁丝原来一样长，现在第一根铁丝剪去25厘米，第二根铁丝剪去10厘米，这时第一根铁丝的(2/5)与第二根铁丝的(1/3)一样长．第一根铁丝原来长多少厘米．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * 25</gadget>
<output>10</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 10</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">10 - (10/3)</gadget>
<output>20/3 = around 6.666667</output>

<gadget id="calculator">(2/5) - (1/3)</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(20/3) / (1/15)</gadget>
<output>100</output>

<result>100</result>