Solve Decimal Addition: 12.75 + 3.35 Step-by-Step

To solve this problem, we'll add the numbers 12.75 and 3.35 by aligning them by their decimal points:

$\begin{array}{c} 12.75 \\ + \underline{3.35} \\ \end{array}$

Step-by-step:

• Hundredths Place: Add 5 and 5 to get 10. Write down 0 and carry over 1 to the tenths place.
• Tenths Place: Add 7 and 3, plus the carry-over 1, to get 11. Write down 1 and carry over 1 to the units place.
• Units Place: Add 2 and the carry-over 1 to get 3. Write down 3.
• Tens Place: Add 1 (from 12) with nothing to carry over to get 1. Write down 1.

The sum is $\mathbf{16.10}$. However, since trailing zeroes after the decimal point in a non-fractional number can be omitted without affecting its value, the final answer is given as $\mathbf{16.1}$.

Therefore, the solution to the problem is $16.1$.