The average of the three numbers is 8, the ratio of the three numbers is 5:4:3, what is the smallest number.
三个数的平均数是8，三个数的比为5：4：3，最小数为多少．
<gadget id="calculator">5 + 4 + 3</gadget>
<output>12</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 * 3 * (1/4)</gadget>
<output>6</output>

<result>6</result>