To determine how many minutes Max reads each evening, we can set up the problem using the relationship between his morning and evening reading times.
Let \( m \) be the number of minutes Max reads each morning. According to the problem, each evening he reads for two-thirds of the time he reads in the morning. Therefore, his evening reading time can be expressed as:
\[ \text{Evening reading time} = \frac{2}{3} m \]
We know from the problem statement that the total reading time each day (morning and evening) is 60 minutes. This can be expressed as:
\[ m + \frac{2}{3} m = 60 \]
To combine the terms, we can rewrite \( m \) in terms of thirds:
\[ m + \frac{2}{3} m = \frac{3}{3} m + \frac{2}{3} m = \frac{5}{3} m \]
Now we can set up the equation:
\[ \frac{5}{3} m = 60 \]
To solve for \( m \), we can multiply both sides by \( \frac{3}{5} \):
\[ m = 60 \times \frac{3}{5} = 36 \]
So, Max reads for 36 minutes each morning. Now, we can find out how many minutes he reads each evening:
\[ \text{Evening reading time} = \frac{2}{3} m = \frac{2}{3} \times 36 = 24 \]
Thus, Max reads \( \boxed{24} \) minutes each evening.