There are 12 excellent students in Class 61, accounting for 1/4 of the whole class; the number of Class 61 is 2/15 of the total number of sixth grade students, how many students are there in sixth grade?
六一班有三好生12人，占全班人数的(1/4)；六一班人数是六年级总人数的(2/15)，六年级有学生多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">12 / (1/4) / (2/15)</gadget>
<output>360</output>

<result>360</result>