There are 30 students in Class 51 participating in the reading group, which is 6 students less than three times the number participating in the calligraphy group. How many people participate in the calligraphy group?
五1班参加朗读小组的学生有30人，比参加书法小组的人数的3倍少6人，参加书法小组的有多少人？
<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<gadget id="calculator">36 / 3</gadget>
<output>12</output>

<result>12</result>