74 derajat 43'27 - 53 derajat 54'38 =...

20 derajat 48'49",maaf klo salah kak

74°43'27"
53°54'38" -
20°88'89" = 20° + (60' + 28') + (60" + 29")
                = 20° + (1° + 28') + (1' + 29" )
                = 21° + 29' + 29"

Maaf kalo salah