A road is 100 meters long. (1/2) of this road was repaired on the first day, and the rest (1/3) was repaired on the second day. What fraction of this road remains unrepaired?
一条路100米，第一天修了这条路的(1/2)，第二天修了余下的(1/3)，还剩这条路的几分之几没有修？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

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

<gadget id="calculator">(1/2) * (1/3)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/2) - (1/6)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>