To find the midpoint \( M \) of a line segment between two points \( A \) and \( B \), you can use the midpoint formula:
\[ M = \frac{A + B}{2} \]
Given the values \( A = 13 \) and \( B = 41 \), we can substitute these into the formula:
\[ M = \frac{13 + 41}{2} \]
First, calculate the sum:
\[ 13 + 41 = 54 \]
Now, divide by 2:
\[ M = \frac{54}{2} = 27 \]
Therefore, the midpoint \( M \) of the line segment \( AB \) is \( 27 \).