A colored ribbon is cut off to the full length (2/9) for the first time, and the ratio of the length of the second cut to the first is 19:20. After the two cuts, there is still 6.1 meters left. How long is this colored ribbon? rice.
一根彩带第一次截去全长的(2/9)，第二次截去的长度与第一次的比为19：20，两次截完后还剩6.1米，这根彩带长多少米．
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">19 / 20</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">(2/9) * (19/20)</gadget>
<output>19/90 = around 0.211111</output>

<gadget id="calculator">1 - (2/9) - (19/90)</gadget>
<output>17/30 = around 0.566667</output>

<gadget id="calculator">6.1 / (17/30)</gadget>
<output>10.764706</output>

<result>10.764706</result>