1°=60′ 1′=60″ 50°22′*2=100°44′92度22分15秒/5=18.4°4.4′3″18.4°=18°+0.4*60′=18°24′18°24′+4.4′=18°28.4′28.4′=28′+0.4*60″=28′24″18°28′24″+3″=18°28′27″原式=100°44′+18°28...