There are a variety of factors that can influence someone's abilities in math and reading. One factor is that some people simply have a natural aptitude for math, while others may have a stronger aptitude for reading or language-based subjects. Another factor is the way in which a person was taught and exposed to these subjects. For example, if a student was taught math in a way that was engaging and made sense to them, they may have a stronger grasp of mathematical concepts. Conversely, if a student was taught to read in a way that was not engaging or was not well-suited to their learning style, they may have difficulty with reading.
It is important to note that everyone has their own strengths and weaknesses, and that people can still be successful and achieve their goals, regardless of their abilities in specific subjects.