There are 28 fourth-grade students participating in the chess interest group, which is 2 less than the 60% of the calligraphy interest group. How many people participated in the calligraphy interest group?
四年级学生参加象棋兴趣小组的人数有28人，比参加书法兴趣小组人数的60%少2人．参加书法兴趣小组的多少人？
<gadget id="calculator">28 + 2</gadget>
<output>30</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 / (3/5)</gadget>
<output>50</output>

<result>50</result>