6435.9+7546.4+1203.5=?

Options

A. 15188.5
B. 15185.8
C. 15155.5
D. 15815.8

Answer

To solve the problem \( 6435.9 + 7546.4 + 1203.5 \), we will follow these steps:

### Step 1: Align the Numbers
First, we need to write the numbers in a column format, aligning the decimal points.

```
6435.9
+ 7546.4
+ 1203.5
```

### Step 2: Add the Decimal Places
We start adding from the rightmost side (the decimal part) and move to the left.

- **Decimal Part**:
- \( 0.9 + 0.4 + 0.5 = 1.8 \)

### Step 3: Add the Whole Numbers
Now we will add the whole number parts.

- **Whole Number Part**:
- \( 6435 + 7546 + 1203 \)

Let's break this down:

1. First, add \( 6435 + 7546 \):
- \( 6435 + 7546 = 13981 \)

2. Now, add \( 13981 + 1203 \):
- \( 13981 + 1203 = 15184 \)

### Step 4: Combine the Results
Now, we combine the results from the whole number part and the decimal part:

- Whole number result: \( 15184 \)
- Decimal result: \( 1.8 \)

So, we write it together:

\[ 15184 + 1.8 = 15185.8 \]

### Final Answer
Thus, the final answer is:

\[ \boxed{15185.8} \]

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