In 331%, 3(1/3), 3.3{_{1}**(•)}, 3.{_{3}**(•)}{_{1}**(•)} Among the numbers, what is the smallest number.
在331%、3(1/3)、3.3{_{1}**(•)}、3.{_{3}**(•)}{_{1}**(•)}四个数中，最小的数是多少．
<gadget id="calculator">331 / 100</gadget>
<output>331/100 = around 3.31</output>

<result>331/100 = around 3.31</result>