There are 10 red balls, 6 yellow balls, and 4 green balls in the box. Xiaoguang randomly draws a ball, what is the probability of drawing a yellow ball?
盒子里有10个红球，6个黄球，4个绿球，小光任意摸出一个球，摸出黄球的可能性是多少．
<gadget id="calculator">10 + 6 + 4</gadget>
<output>20</output>

<gadget id="calculator">6 / 20</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>