On Saturday, Xiaoling's family of three went to the park. The local regulations for buying tickets: Adults are 7 yuan each, and children's tickets are half of the adult price. How much does Xiaoling's family spend on buying tickets?
星期六小玲一家三口去去逛公园，买门票的地方规定：成人每张7元，儿童的票价是成人的一半，那么小玲一家买票要花多少元？
<gadget id="calculator">7 / 2</gadget>
<output>7/2 = around 3.5</output>

<gadget id="calculator">7 * 2</gadget>
<output>14</output>

<gadget id="calculator">(7/2) + 14</gadget>
<output>35/2 = around 17.5</output>

<result>35/2 = around 17.5</result>