There are 2 red balls, 3 yellow balls and 3 white balls in the black cloth pocket. Randomly draw a ball out of it, and put it back after touching it. The probability of touching a red ball is ((())/(())), and what is the probability of touching a non-yellow ball.
黑布口袋里有2个红球、3个黄球和3个白球．从中任意摸出一个球，摸后放回．摸到红球的可能性是((())/(()))，摸到不是黄球的可能性是多少．
<gadget id="calculator">2 + 3 + 3</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>