There is a colored line divided into red, yellow, and green sections. The red section accounts for (1/8) of the total length, the yellow section is 2 meters long, and the green section is (5/8) meters long. How many meters is the total length of this colored line?
有一条彩线分为红、黄、绿三段，红色部分占总长度的(1/8)，黄色部分长2米，绿色部分长(5/8)米，这条彩线一共多少米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">2 + (5/8)</gadget>
<output>21/8 = around 2.625</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(21/8) / (7/8)</gadget>
<output>3</output>

<result>3</result>