The average of the three numbers is 8, the ratio of the three numbers is 1:2:3, what is the smallest number.
三个数的平均数是8，三个数的比为1：2：3，最小数为多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

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

<result>4</result>