The road repair team built a road. On the first day, it repaired the full length (7/12), and on the second day, it repaired the full length (1/5) less than the first day. What fraction is left unrepaired?
修路队修一条公路，第一天修了全长的(7/12)，第二天比第一天少修了全长(1/5)，还剩几分之几没有修？
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(7/12) - (1/5)</gadget>
<output>23/60 = around 0.383333</output>

<gadget id="calculator">(23/60) + (7/12)</gadget>
<output>29/30 = around 0.966667</output>

<gadget id="calculator">1 - (29/30)</gadget>
<output>1/30 = around 0.033333</output>

<result>1/30 = around 0.033333</result>