[
  "Add hours: 3 + 1 = 4. Add minutes: 20 + 45 = 65.",
  "65 minutes is more than 60. Convert: 65 min = 1 h 5 min.",
  "Combine: 4 h + 1 h 5 min = 5 h 5 min. Answers: 5 hours, 5 minutes."
]