It’s actually fairly easy, just enter it as a latitude,longitude pair, ie 46.38S,115.36E (which is in the middle of the ocean). You’ll want to convert it to decimal though (divide the minutes portion by 60 and add it to the degrees [I’ve done that with your example]).
First is latitude, second longitude. Different than many constructors in mapbox.
Here are examples of formats that work:
Degrees, minutes, and seconds (DMS): 41°24’12.2″N 2°10’26.5″E
Degrees and decimal minutes (DMM): 41 24.2028, 2 10.4418
Decimal degrees (DD): 41.40338, 2.17403
Tips for formatting your coordinates
Use the degree symbol instead of “d”.
Use periods as decimals, not commas.
Incorrect: 41,40338, 2,17403.
Correct: 41.40338, 2.17403.
List your latitude coordinates before longitude coordinates.
Check that the first number in your latitude coordinate is between -90 and 90 and the first number in your longitude coordinate is between -180 and 180.
https://support.google.com/maps/answer/18539