In the earthquake relief donation activity, the teachers and students of the Experimental Primary School donated a total of 28,000 yuan, of which the students donated 3/4 of the teachers. How much did the students donate?
在抗震救灾捐款活动中，实验小学师生一共捐款28000元，其中学生捐款是教师的(3/4)，学生捐款多少元？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 + (3/4)</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">28_000 / (7/4)</gadget>
<output>16_000</output>

<gadget id="calculator">28_000 - 16_000</gadget>
<output>12_000</output>

<result>12_000</result>