1/2 числа 40=20
20 × 0.75(3/4)= 15
87,4078947368
Ты можешь округлить до 88
1) 12°36' = 12 +36/60 = 12,6
2) 44° 16' 25" = 44 16/60 + 25/3600 = 44.2736(1)
3) 54° 30" = 54 + 30/3600 = 54.008(3)
4) 135° 56' 10" = 135 + 56/60 + 10/3600 = 135.936(1)
5) 49° 49" =49 +49/3600 = 49.0136(1)