Divide a pizza into 9 parts on average, and Dad eats 2 of them, how much of the pizza did Dad eat.
把一只匹萨饼平均分成9份，爸爸吃了其中的2份，爸爸吃了这只匹萨饼的多少．
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<result>2/9 = around 0.222222</result>