The special express train from Beijing to City G took 12.6 hours before October 2000, and then increased the speed by 20%. Question: After the speed is increased, how many hours will it take for the special express train from Beijing to City G?
从北京到G城的特别快车在2000年10月前需用12.6小时，后提速20%．问：提速后，北京到G城的特别快车需要多少小时．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1 / (6/5)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">12.6 * (5/6)</gadget>
<output>10.5</output>

<result>10.5</result>