The fractional unit of a fraction is (1/9), which is composed of 28 such fractional units. What is the fraction.
一个分数的分数单位是(1/9)，它是由28个这样的分数单位组成，这个分数是多少．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">28 * (1/9)</gadget>
<output>28/9 = around 3.111111</output>

<result>28/9 = around 3.111111</result>