A highway is (3/4) kilometers long. (1/3) was repaired in the first week, and (1/3) kilometers were repaired in the second week. How many kilometers are left to be repaired?
一条公路长(3/4)千米，第一周修了(1/3)，第二周修了(1/3)千米，还剩多少千米没有修？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(3/4) * (1/3)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) + (1/3)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">(3/4) - (7/12)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>