The product of two numbers is 72, if one factor is reduced by 4 times, the other factor is also reduced by 2 times, what is the product?
两数相乘积是72，若使一个因数缩小4倍，另一个因数也缩小2倍，那么积是多少？
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">72 / 8</gadget>
<output>9</output>

<result>9</result>