Xiaoming walks, Xiaoying rides a bicycle, and Xiaoying's speed of cycling is three times that of Xiaoming's walking speed. They are going in the same direction along the route of No. 100 bus at the same time and at the same place. Every 12 minutes, a No. 100 bus passes Xiaoming, and every 24 minutes, a No. 100 bus passes Xiaoying. It is known that bus No. 100 departs at the same time, so how many minutes does bus No. 100 depart at intervals?
小明步行，小英骑车，小英骑车的速度是小明步行速度的3倍．他们同时、同地沿100路公交车路线同向而行，每隔12分钟有一辆100路公共汽车超过小明，每隔24分钟有一辆100公共汽车超过小英．已知100路公共汽车每隔同样的时间发一辆，那么100路公共汽车间隔多少分钟发一辆车．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / (1/8)</gadget>
<output>8</output>

<result>8</result>