There are 120 boys in the sixth grade of the school, accounting for 3/5 of the total number of sixth graders. How many more boys are there than girls in the sixth grade?
学校六年级有男生120人，占六年级总人数的(3/5)，六年级男生比女生多多少人？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 / (3/5)</gadget>
<output>200</output>

<gadget id="calculator">200 - 120</gadget>
<output>80</output>

<gadget id="calculator">120 - 80</gadget>
<output>40</output>

<result>40</result>