The denominators of the two simplest fractions are 48 and 72 respectively, what is the smallest common denominator after their common division
两个最简分数的分母分别是48和72，它们通分后的公分母最小是多少
<gadget id="calculator">2 * 2 * 2 * 3 * 2 * 3</gadget>
<output>144</output>

<result>144</result>