Calculation: 153 ° 19 ′ 42 ″ + 26 ° 40 ′ 28 ″=______ .

Calculation: 153 ° 19 ′ 42 ″ + 26 ° 40 ′ 28 ″=______ .

153°19′42″+26°40′28″=179°59′70″=179°60′10″=180°10″.