Xiao Ming and his father are walking in the desert. They walk a circle in the same direction and at the same starting point. Xiao Ming walks 54 centimeters in one step, and his father walks 72 centimeters in one step. They walk down in a circle. There are 96 overlapping footprints of Xiao Ming and his father. The circumference of this circle How many meters long.
小明和爸爸两人在沙漠里走，同时同向同起点走一个圆，小明一步走54厘米，爸爸一步走72厘米，一圈走下来，小明与爸爸重合的脚印有96个，这个圆的周长为多少米．
<gadget id="calculator">216 * 96</gadget>
<output>20_736</output>

<gadget id="calculator">20_736 / 100</gadget>
<output>5_184/25 = around 207.36</output>

<result>5_184/25 = around 207.36</result>