There are 18 boys in Class 5 and 12 girls. What percentage is the number of girls compared to the number of boys?
五1班男生有18人，女生有12人．女生人数是男生人数的几分之几？
<gadget id="calculator">12 / 18</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>