An engineering team repaired the road, and (1/3) of this road was repaired in 3 days, and the remaining part of this road was not repaired.
一个工程队修路，3天修了这条路的(1/3)，还剩这条路的多少没修．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>