If the ratio of girls to boys is 5:4, how much more girls than boys?
女生与男生的人数比为5﹕4，那么女生比男生人数多多少．
<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>