There are more boys than girls in a class (1/10), and the number of girls is the number of the whole class.
某班男生比女生多(1/10)，女生人数是全班人数的多少．
<gadget id="calculator">10 + 11</gadget>
<output>21</output>

<gadget id="calculator">10 / 21</gadget>
<output>10/21 = around 0.47619</output>

<result>10/21 = around 0.47619</result>