1°=60′=3600″58°28′12″=58°+28′+12″=58°+(28/60)°+(12/3600)°=58°+(7/15)°+(1/300)°=58°+(140/300)°+(1/300)°=58°+(141/300)°=58°+0.47°=58.47°36°17′42″=36°+17′+42″=36°+(17/60)°+...