If the ratio of the number of boys to girls in a class is 5:4, how much more boys are there than girls?
一个班级男女生人数之比是5：4，则男生人数比女生人数多多少
<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>