The school's "61st celebration" group gymnastics performance has 3 squares, each with 50 people, and the number of boys in the first square is the same as that of girls in the second square, and girls account for (3/5) in the third square , How many girls participated in the group gymnastics performance of "Celebrating June 1st"?
学校"庆六一"团体操表演有3个方阵，每个方阵50人，其中第一方阵的男生和第二方阵的女生同样多，第三方阵中女生占(3/5)，参加"庆六一"团体操表演的女生一共有多少人．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">30 + 50</gadget>
<output>80</output>

<result>80</result>