Class 6 (3) has 40 students, if there are 22 girls, how much more girls than boys?
六(三)班有学生40人，若有女生22人，则女生比男生多几分之几？
<gadget id="calculator">40 - 22</gadget>
<output>18</output>

<gadget id="calculator">22 - 18</gadget>
<output>4</output>

<gadget id="calculator">4 / 18</gadget>
<output>2/9 = around 0.222222</output>

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