Question

15度37分20秒加42度51分41秒等于多少？

Answer 1

15º37’20"拦念+42º51’41”
=57º88’61”
=58º29’中燃1”
º，卖衡虚’，”之间是60进制

Answer 2

15°37'20'' +42°51'41'念芹'
=57°88'61'粗高歼'
=57°89'1'岩冲'
=58°29'1''