There are 5 red balls, 3 yellow balls and 2 white balls in the bag. If a ball is drawn at random from the bag, by what percentage is the probability of drawing a yellow ball greater than the probability of drawing a white ball?
袋子里放了5个红球，3个黄球，2个白球．若从袋子里任意摸出一个球，摸出黄球的可能性比摸出白球的可能性多百分之几？
<gadget id="calculator">5 + 3 + 2</gadget>
<output>10</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(3/10) - (1/5)</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>