Understanding the Units
* 21 feet 8 inches: This is a length measurement in feet and inches.
* 10 7: This is unclear. It could be:
* 10 feet 7 inches: If this is the case, we can easily add it to the first measurement.
* 10.7 feet: This is a decimal representation of feet, and we'll need to convert it to feet and inches to add it.
Let's assume you meant 10 feet 7 inches:
1. Add the feet: 21 feet + 10 feet = 31 feet
2. Add the inches: 8 inches + 7 inches = 15 inches
3. Simplify: Since there are 12 inches in a foot, 15 inches is equal to 1 foot and 3 inches.
4. Combine: 31 feet + 1 foot + 3 inches = 32 feet 3 inches
If you meant 10.7 feet:
1. Convert 10.7 feet to feet and inches:
* 0.7 feet * 12 inches/foot = 8.4 inches
* 10.7 feet is equal to 10 feet 8.4 inches
2. Add the feet: 21 feet + 10 feet = 31 feet
3. Add the inches: 8 inches + 8.4 inches = 16.4 inches
4. Simplify: 16.4 inches is equal to 1 foot and 4.4 inches
5. Combine: 31 feet + 1 foot + 4.4 inches = 32 feet 4.4 inches
Important: Make sure to clarify the units in your measurements to avoid confusion.