In the fifth grade of a school, the students who can play the piano account for 1/12 of the whole grade, and the students who can play the flute account for 1/8 of the whole grade. There are 20 more students who can play the flute than those who can play the piano. How many fifth graders are there?
某校五年级会弹琴的学生占全年级人数的(1/12)，会吹长笛的学生占全年级人数的(1/8)，会吹长笛的比会弹琴的学生多20人，该校五年级学生共有多少人？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/8) - (1/12)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">20 / (1/24)</gadget>
<output>480</output>

<result>480</result>