Odpowiedź :
7/20 czy 4/15
7/20=21/60
4/15=16/60
21/60 > 16/60
14/15 czy 17/18
14/15 =252/270
17/18=255/270
252/270<255/270
7/20=21/60
4/15=16/60
21/60 > 16/60
14/15 czy 17/18
14/15 =252/270
17/18=255/270
252/270<255/270
a)7/20 czy 4/15
7/20=21/60
4/15=16/60
21/60 > 16/60
7/20 > 4/15
b) 14/15 czy 17/18
14/15=84/90
17/18=85/90
84/90 < 85/90
14/15 < 17/18
7/20=21/60
4/15=16/60
21/60 > 16/60
7/20 > 4/15
b) 14/15 czy 17/18
14/15=84/90
17/18=85/90
84/90 < 85/90
14/15 < 17/18