Two engineering teams, A and B, jointly build a canal. Team A repaired the full length (7/12) when the project was completed, and what fraction of the full length was repaired by Team B than Team A?
甲乙两个工程队合修一条水渠．完工时甲队修了全长的(7/12)，乙队比甲队少修了全长的几分之几？
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">1 - (7/12)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(7/12) - (5/12)</gadget>
<output>1/6 = around 0.166667</output>

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