Dad is 36 years old this year, three times more than Xiaoming's age this year. How old is Xiaoming? what is the correct formula
爸爸今年36岁，比小明今年年龄的3倍多3岁，小明今年几岁？正确的算式是多少
<gadget id="calculator">36 - 3</gadget>
<output>33</output>

<gadget id="calculator">33 / 3</gadget>
<output>11</output>

<result>11</result>