Xiao Ming goes from his own home to his grandmother's house. On the way, he has to go through uphill, flat road and downhill. The length of the three sections is the same. The ratio of Xiao Ming's speed on these three sections of road is 1:2:3. It is known that it took him 24 minutes to walk on the flat road, so how long does it take Xiao Ming to travel from his home to his grandmother's house?
小明从自己家去外婆家，途中要经过上坡、平路和下坡，三段路程长度一样．小明在这三段路上的速度之比为1：2：3，已知他走平路花了24分钟，那么小明从自己家到外婆家一共要多久？
<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">24 * (2/3)</gadget>
<output>16</output>

<gadget id="calculator">48 + 24 + 16</gadget>
<output>88</output>

<result>88</result>