An engineering team repaired a road, and repaired (4/9)km in the first week, which was (1/3)km less than the second week, and (1/6)km less in the third week than the sum of the previous two weeks. How many kilometers did the road build in the third week?
某工程队修一条公路，第一周修了(4/9)km，比第二周少修了(1/3)km，第三周比前两周修的总和少(1/6)km．第三周修路多少千米？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

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

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(4/9) - (1/6)</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">(4/9) + (1/3) + (5/18)</gadget>
<output>19/18 = around 1.055556</output>

<result>19/18 = around 1.055556</result>