Dad rides a bicycle from A to B, if he travels 12 kilometers per hour, he will arrive in 7 hours. If you want to arrive 1 hour earlier, how many kilometers do you need to travel per hour?
爸爸骑自行车从甲地到乙地，如果每小时行12千米，7小时到达．如果想提前1小时到达，每小时需要行多少千米？
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">7 / 6</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">12 * (7/6)</gadget>
<output>14</output>

<result>14</result>