The sum of the ages of the three members of Xiao Ming's family is 63 years old. His father is 25 years older than Xiao Ming and 2 years older than his mother. How old is Xiao Ming this year?
小明一家三口人的年龄和是63岁，爸爸比小明大25岁，比妈妈大2岁，小明今年多少岁？
<gadget id="calculator">63 - 25 - 25</gadget>
<output>13</output>

<gadget id="calculator">2 + 13</gadget>
<output>15</output>

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

<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<result>5</result>