If a car travels from point A to point B, it takes 6 hours to go, and the return speed is 12.5% faster, how many hours will it take to return than to go.
一辆汽车从A地到B地，去时用了6小时，返回速度加快12.5%，则返回比去时少用多少小时．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">1 + 0.125</gadget>
<output>1.125</output>

<gadget id="calculator">(1/6) * 1.125</gadget>
<output>0.1875</output>

<gadget id="calculator">1 / 0.1875</gadget>
<output>5.333333</output>

<gadget id="calculator">6 - 5.333333</gadget>
<output>0.666667</output>

<result>0.666667</result>