The ratio of male teachers to female teachers in a school is 5:4, how much more male teachers than female teachers?
某校男教师与女教师人数的比是5：4，男教师人数比女教师人数多多少．
<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>