The number of boys in a class is 5/6 of the number of girls, how much more girls than boys.
某班男生人数是女生人数的(5/6)，女生比男生多多少．
<gadget id="calculator">6 - 5</gadget>
<output>1</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>