There are 486 boys in Guangming Primary School, and the number of girls is 5/6. How many more boys than girls in Guangming Primary School?
光明小学有男生486人，女生人数是男生的(5/6)，光明小学男生比女生多多少人？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">486 * (5/6)</gadget>
<output>405</output>

<gadget id="calculator">486 - 405</gadget>
<output>81</output>

<result>81</result>