The answer to 3 feet 9 inches plus 6 feet 9 inches (3' 9" + 6' 9") is displayed below:
10 feet 6 inches
Here is how we calculated 3 feet 9 inches plus 6 feet 9 inches to get the answer above:
First, we converted feet to inches so we are only dealing with inches.
3 feet 9 inches = 45 inches
6 feet 9 inches = 81 inches
Then, we added the inches together to get the total number of inches:
45 + 81 = 126 inches.
Finally, we converted 126 inches into feet and inches to get the answer.
3' 9" + 6' 9" = 10' 6"
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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