The engineering team repaired the railway, the first time it repaired the entire length of the railway (2/9), and the second time it repaired more (1/9) than the first time, what fraction of the total length of the railway was repaired twice?
工程队修铁路，第一次修了铁路全长的(2/9)，第二次比第一次多修了(1/9)，两次共修了铁路全长的几分之几？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 + (1/9)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">(2/9) * (10/9)</gadget>
<output>20/81 = around 0.246914</output>

<gadget id="calculator">(2/9) + (20/81)</gadget>
<output>38/81 = around 0.469136</output>

<result>38/81 = around 0.469136</result>