Odpowiedź:
1.
7 3/7 - 4/7 = 6 10/7 - 4/7 = 6 6/7
2.
12 1/4 - 2/4 = 11 5/4 - 2/4 = 11 3/4
3.
2 1/3 - 2/3 = 1 4/3 - 2/3 = 1 2/3
4.
10 2/5 - 4/5 = 9 7/5 - 4/5 = 9 3/5
5.
4 1/8 - 5/8 = 3 9/8 - 5/8 = 3 4/8 = 3 1/2
6.
8 2/4 - 3/4 = 7 6/4 - 3/4 = 7 3/4
7.
9 3/5 - 4/5 = 8 8/5 - 4/5 = 8 4/5
8.
5 2/9 - 5/9 = 4 11/9 - 5/9 = 4 6/9 = 4 2/3
9.
1 1/6 - 5/6 = 7/6 - 5/6 = 2/6 = 1/3
10.
3 3/7 - 6/7 = 2 10/7 - 6/7 = 2 4/7
11.
4 2/6 - 4/6 = 3 8/6 - 4/6 = 3 4/6 = 3 2/3
12.
6 3/8 - 5/8 = 5 11/8 - 5/8 = 5 6/8 = 5 3/4
