3 sentences

1. 他跟老爸的年纪相仿。

   tā gēn lǎo​bà de nián​jì xiāng​fǎng.

   He's about the same age as Dad.

   Source: OpenSubtitles

2. 他们年龄相仿。

   tā​men nián​líng xiāng​fǎng.

   They are about the same age.

   Source: Tatoeba

3. 他本可以找到和他年龄相仿的人。

   tā běn kě​yǐ zhǎo dào hé tā nián​líng xiāng​fǎng de rén.

   He could have found someone his age.

   Source: CCMatrix