There are two ropes, the first one is 26m long and the second one is 18m long. After cutting the two ropes to the same length, the remaining length of the second one is the remaining length of the first one (3/5 ), how many meters are left on the first line?
有两条绳子，第一条长26m，第二条长18m，把这两条绳子都剪去同样长的一段后，第二条剩下的长度是第一条剩下长度的(3/5)，第一条剩下多少米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 26</gadget>
<output>78/5 = around 15.6</output>

<gadget id="calculator">18 - (78/5)</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(12/5) / (2/5)</gadget>
<output>6</output>

<gadget id="calculator">26 - 6</gadget>
<output>20</output>

<result>20</result>