There are 10 red balls and 2 yellow balls in a bag, all of which are of the same color except for the same color, what is the probability of getting a red ball if one is randomly drawn from the bag
一袋中有10个红球，2个黄球，每个球颜色除外都相同，从袋中任意摸出一个而得到是红球的可能性是多少
<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<gadget id="calculator">10 / 12</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>