How to solve 108 ° 18 ′ + 56 ° 23 ′ 40 ″,

108+56=164
18+23=41
0+40=40
So 108 ° 18 ′ + 56 ° 23 ′ 40 ″ = 164 ° 41 ′ 40 ″
Note: 1 ° = 60 '= 360 ″

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