Xiaoming and his father are going to visit the zoo. Dad takes out 50 yuan and gets back 0.5 yuan. Xiaoming's fare is half of his father's fare. How much is Xiaoming's fare?
小明和爸爸要到动物园去参观，爸爸拿出50元，找回了0.5元，小明的票价是爸爸票价的一半，小明的票价是多少元？
<gadget id="calculator">50 - 0.5</gadget>
<output>49.5</output>

<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">49.5 / 3</gadget>
<output>16.5</output>

<result>16.5</result>