a) 30,12 grade =30 grade 7 min 12 sec
1 grad .............60 min
0,12 grade ........x min
x=0,12*60=7,2 min =7 min si 0,2 sec
1 min .............60 sec
0,2 min ........x sec
x=0,2*60=12 sec
b) 75,18 grade = 75 grade 10 min 48 sec
1 grad .............60 min
0,18 grade ........x min
x=0,18*60=10,8 min =10 min si 0,8 sec
1 min .............60 sec
0,8 min ........x sec
x=0,8*60=48 sec
c) 15,21 grade = 15 grade 12 min 36 sec
1 grad .............60 min
0,21 grade ........x min
x=0,21*60=12,6 min =12 min si 0,6 sec
1 min .............60 sec
0,6 min ........x sec
x=0,6*60=36 sec
d) 18,25 grade = 18 grade 15 min
1 grad .............60 min
0,25 grade ........x min
x=0,25*60=15 min
