If the number of boys in class 61 is less than the number of girls (1/5), how much more girls are there than boys?
六一班男生人数比女生人数少(1/5)，则女生人数比男生人数多多少
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

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

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