A cube, "1" is written on one of its faces, "2" is written on two faces, and "3" is written on three faces. After the cube is thrown and falls, it is possible that the number facing up is an odd number How much is sex.
一个正方体，它的1个面上写着"1"，2个面上写着"2"，3个面上写着"3"，抛起这个正方体落下后，朝上的数是奇数的可能性是多少．
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

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

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