Question

calcule 60°40'20" - 30°30'30"​

Answer 1

Resposta:

60°40'20" - 30°30'30"​ = 30° 9' 50''

Answer 2

$\boxed{\begin{array}{l}\sf60^\circ40'20"=59^\circ99'80"\\\sf 60^\circ39'20"-30^\circ30'30"=59^\circ99'80"-30^\circ30'30"\\\sf29^\circ69'50"=30^\circ9'50"\end{array}}$