The road construction team wants to build a road. Those who have already built this road (7/12), how much more have they repaired than the ones that have not been repaired?
修路队要修一条公路，已经修了这条公路的(7/12)，修的比未修的多几分之几？
<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>

<gadget id="calculator">(1/6) / (5/12)</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>