You can do one-half of a job in an hour. Your friend can do one-third of the same job in an hour. How long will it take to do the job if you work together. Write your answer as a decimal.
That means you can do the whole job in two hours and he can do it in three. The set up then becomes t/2 + t/3 = 1 and then Multiply by 6 and get 3t + 2t = 6 5t = 6 t = 6/5 = 1.2 hours = 1 hour 12 minutes
