The numbers 1, 2, and 3 are written on the three cards, and any two of them are used to form a two-digit number. If the two-digit number is an odd number, Xiao Ming wins. Responsible Xiao Qiang wins, and what is the possibility of Xiao Ming winning.
三张卡片上分别写着数字1，2，3，用其中任意两张摆成两位数，若两位数是单数，则小明赢，负责小强赢了，小明赢的可能性为多少．
<gadget id="calculator">4 + 2</gadget>
<output>6</output>

<gadget id="calculator">4 / 6</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>