That is to say, the age cannot be written as 22.5 years old. There is a saying that you are 22 and a half years old in daily life, and you can't fill it in your resume like that.

The year of this year minus the year of your birth is the age.

Born in 1992, 20 15- 1992=23 years old.

Resumes are generally written at the age of 23.