Question

Hey guys i don't understand this can you please help me with this 9' 9" − 2' 11"

Answer 1

9’9”-2’11”
First do 9’9” - 2’ = 7’9”.
Then, you have to take away the 11”.
Take away 9” first to get 7’9”-9” =7’.
Then take away the last 2” to get 7’-2”=6’10”

The answer is 6’10”.