If Gloria were to paint her living room alone, it would take 6 hours. Her sister Terri could do the job in 7 hours. How many hours would it take them working together? Express your answer as a fraction reduced to lowest terms, if needed.
This is easy
Add
1/6 + 1/7 = 13/42
Take the reciprocal =
42/13 hrs ≈ 3.23 hrs working together
thats sooooo easy its: 6/7 (6 over 7)(fraction) suppper easy!!!!
