Convert them to the same denominator. (30) 4 6/30 + 15/30 + 5 20/30 + 4 5/30 + 24/30- Matt 4 15/30 + 2 26/30+ 5 25/30 + 15/30 - Daphne Matt- 15 10/30 Daphne- 13 21/30 A Matt- 1 19/30 hours more than Daphne Matt read for 15 hours and 10/30 minutes Daphne read for 13 hours and 21/30 minutes