There are more boys than girls in a class (1/9), and the number of girls accounts for ((())/(())) of the whole class.
某班男生比女生多(1/9)，女生人数占全班人数的((())/(()))．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 + 1 + (1/9)</gadget>
<output>19/9 = around 2.111111</output>

<gadget id="calculator">1 / (19/9)</gadget>
<output>9/19 = around 0.473684</output>

<result>9/19 = around 0.473684</result>