Perform these additions and subtractions, being careful not to leave more than 59 seconds or 59 minutes in your answers. a) + 5 hours, 27 minutes, 5 hours, 11 hour(s), 49 seconds 41 minutes, 34 seconds 9 minute(s), 23 second(s) b) 3 hours, 41 minutes, 40 seconds + 4 hours, 44 minutes, 38 seconds hour(s), minute(s). second(s)