Among 3.14, 31.4%, (22/7) and π, what is the largest number.
在3.14，31.4%，(22/7)和π中，最大的数是多少．
<gadget id="calculator">22 / 7</gadget>
<output>22/7 = around 3.142857</output>

<result>22/7 = around 3.142857</result>