If the number of boys in a school is 25% greater than the number of girls, what is the number of boys in the school?
某校男生人数比女生人数多25%，那么男生人数是全校的多少．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 + 1 + (1/4)</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">(5/4) / (9/4)</gadget>
<output>5/9 = around 0.555556</output>

<result>5/9 = around 0.555556</result>