Answer :

To solve the problem

[tex]$$
38.6+13.67,
$$[/tex]

follow these steps:

1. Write both numbers with the same number of decimal places. We can write [tex]$38.6$[/tex] as [tex]$38.60$[/tex] so that both numbers have two decimal places:
[tex]$$
38.60 \quad \text{and} \quad 13.67.
$$[/tex]

2. Now, add the numbers column by column starting from the rightmost digit:

[tex]\[
\begin{array}{r}
\quad 38.60 \\
+\; 13.67 \\
\hline
\quad 52.27 \\
\end{array}
\][/tex]

3. The sum of [tex]$38.60$[/tex] and [tex]$13.67$[/tex] is [tex]$52.27$[/tex].

Thus, the final answer is

[tex]$$
52.27.
$$[/tex]