Multiply the decimal degrees by 60 to get minutes, then multiply the decimal minutes by 60 to get seconds (round if necessary).
Example 47.864° --> save the 47 degrees
Multiply .864 by 60 to get 51.84 minutes. --> save the 51 minutes
Multiply .84 by 60 to get 50.4 seconds (round to 50).
Answer 47° 51' 50"
Multiply the decimal degrees by 60 to get minutes, then multiply the decimal minutes by 60 to get seconds (round if necessary).
Example 47.864° --> save the 47 degrees
Multiply .864 by 60 to get 51.84 minutes. --> save the 51 minutes
Multiply .84 by 60 to get 50.4 seconds (round to 50).
Answer 47° 51' 50"