After only adding parentheses in the formula 6*4+18/6+8, what is the smallest result that can be calculated?
在算式6*4+18/6+8中只添加小括号后，所能计算出的最小结果是多少．
<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">24 + 18</gadget>
<output>42</output>

<gadget id="calculator">6 + 8</gadget>
<output>14</output>

<gadget id="calculator">42 / 14</gadget>
<output>3</output>

<result>3</result>