Răspuns :
Ex. 9: 5/8 (5 pe 8)
5/8 ≥ 1/8 ≥ 2/8 ≥ 3/8 ≥ 4/8 ≥ 5/8
4/9 ≤ 4/9 ≤ 5/9 ≤ 6/9 ≤ 7/9 ≤ 8/9
Ex. 11: 9/7 > 8/7 > 6/7 > 5/7 > 4/7 > 3/7 > 2/7 > 1/7
5/8 ≥ 1/8 ≥ 2/8 ≥ 3/8 ≥ 4/8 ≥ 5/8
4/9 ≤ 4/9 ≤ 5/9 ≤ 6/9 ≤ 7/9 ≤ 8/9
Ex. 11: 9/7 > 8/7 > 6/7 > 5/7 > 4/7 > 3/7 > 2/7 > 1/7