There are 1 white ball, 2 red balls, and 3 yellow balls in a carton. If you touch any ball, what is the probability of getting a red ball?
一个纸盒内装有1个白球，2个红球，3个黄球，任意摸一个球，摸到红球的可能性是多少
<gadget id="calculator">1 + 2 + 3</gadget>
<output>6</output>

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

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