Answer
55$^{\circ}$09'
Work Step by Step
1. Redistribute one degree from the 180 degrees to 60 minutes.
179$^{\circ}$60'- 124$^{\circ}$51' = ?
2. Subtract degrees from degrees and minutes from minutes
179$^{\circ}$ - 124$^{\circ}$ = 55$^{\circ}$
60'-81'= 09'
Answer: 55$^{\circ}$09'