It takes Evan 6 3/4 hours to mow 3 lawns. It takes him 2 1/3 hours to mow Mr. Gal's lawn and 1 3/4 hours to mow Ms. Lee's lawn. How many hours does it take Evan to mow the third lawn?
turn the 1/3 and 3/4 into 4/12 and 9/12, add them and the 2 and 1 and get 4 1/12 turn the rest into fractions of 12 so 11/12 12/12 9/12 = 2 8/12 which = 2 2/3
