Decimal degrees = whole number of degrees + minutes divided by 60 + seconds divided by 3600
For example, Degree = 2 o, Minute = 3 ', Second = 4 ". the result 2o 3' 4" = 2o + 3'/60 + 4"/3600 = 2.051111o
For example, Degree = 22o, Minute = 12', Second = 36 ". the result 22o 12' 36" = 22o + 12'/60 + 36"/3600 = 22.21o