Solve Decimal Addition: 2.7 + 1.6 Step by Step

To solve this problem, we'll follow these steps:

• Step 1: Align the numbers by their decimal points:

$2.7 + 1.6$

Step 2: Add the numbers starting from the rightmost digit (the tenths place in this case):

• The tenths place: $7 + 6 = 13$. Write down $3$ and carry over $1$ to the ones place.
• The ones place: $2 + 1 = 3$, plus the carried over $1$ equals $4$.

Thus, the result of the addition is:

$4.3$

The correct answer, $\boxed{4.3}$, matches one of the choices, verifying our result.

Therefore, the solution to the problem is $4.3$.