The road was built in 3 days, the full length (1/12) was built on the first day, the full length (5/12) was built on the second day, and what fraction of the full length was repaired on the third day?
3天修条路，第一天修了全长的(1/12)，第二天修了全长的(5/12)，第三天修了全长的几分之几？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(1/12) + (5/12)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>