Hasil dari 1/5×8°+1/4×7°=.... A. 2°35' B. 2°45' C. 3°15' D. 3°21' Tolong caranya..

[tex] \frac{1}{5} \times {8}^{o} + \frac{1}{4} \times {7}^{o} \\ = \frac{ {8}^{o} }{5} + \frac{ {7}^{o} }{4} \\ = \frac{ {32}^{o} }{20} + \frac{ {35}^{o} }{20} \\ = \frac{ {67}^{o} }{20} \\ = {3.35}^{o} \\ [/tex]
3,35° = 3° + 0,35°
= 3° + 21'
= 3° 21'

jawaban bagian D.
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