Odpowiedź:
2/3 < 3/4 = 8/12 < 9/12
3/5 > 4/7 = 21/35 > 20/35
4/7 < 7/9 = 36/63 < 49/63
2/9 < 7/10 = 20/90 < 63/90
5/6 > 9/11 = 55/66 > 54/66
3/5 < 3/4 = 12/20 < 15/20
5/7 > 2/3 = 15/21 > 14/21
1/2 > 3/7 = 7/14 > 6/14
4/7=36/63
7/9=49/63
36/63<49/63
Szczegółowe wyjaśnienie:
