=24 14'24''+55 +0.48
=24 14'24''+55 +0.48×60'
=24 14'24''+55 +28.8'
=24 14'24''+55 +28'+0.8'
=24 14'24''+55 +28'+0.8×60″
=24 14'24''+55 +28'+48″
=24 14'24''+55 28'48″
=79 42'72''
=79 42' 12″