An opaque bag contains 2 red balls, 2 yellow balls and 2 white balls of the same shape and size. If you touch a ball randomly, what is the probability of catching a red ball?
一个不透明的袋子里装了形状大小一样的红球、黄球、白球各2只，从中任意摸一只球，抓到红球的可能性是多少
<gadget id="calculator">2 + 2 + 2</gadget>
<output>6</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>