The answer to 6 feet 9 inches plus 3 feet 11 inches (6' 9" + 3' 11") is displayed below:
10 feet 8 inches
Here is how we calculated 6 feet 9 inches plus 3 feet 11 inches to get the answer above:
First, we converted feet to inches so we are only dealing with inches.
6 feet 9 inches = 81 inches
3 feet 11 inches = 47 inches
Then, we added the inches together to get the total number of inches:
81 + 47 = 128 inches.
Finally, we converted 128 inches into feet and inches to get the answer.
6' 9" + 3' 11" = 10' 8"
Note: There are 12 inches in a foot. Thus, you multiply feet by 12 to get only inches, and
to make it back to feet and inches we divided total number of inches by 12.
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