# 5.1.6. Multiplication of Decimal Fractions

Calculate the area of a rectangle whose side lengths are

- A
- B
- C
- D

### Example

Calculate the area of a rectangle whose side lengths are

### Solution

Multiply the length by the width to find the area of a rectangle.

To multiply decimals, first ignore the decimal point in both numbers and multiply.

To place the decimal point, count the number of decimal places in the factors. The number of decimal places in the product is equal to that sum. The sum of the decimal places in these factors is 3, so place the decimal point in the product 3 places from the right: 398.877.

Then approximate to the nearest unit.