There are 2 apples, 3 oranges and 1 banana pictures in an opaque box, what is the probability of touching a banana each time you touch a picture.
不透明的盒子里有2个苹果、3个桔子和1根香蕉图片，每次摸一图片，摸到香蕉的可能性是多少．
<gadget id="calculator">2 + 3 + 1</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>