1/4 + 1/2 < 1 , 1/4 + 1/2 = 1/4 + 2/4 = 3/4
3/11 + 9/22 < 1, 3/11 + 9/22 = 6/22 + 9/22 = 15/22
6/18 + 12/18 = 1 , 6/18 + 12/18 = 18/18 = 1
11/19 + 8/38 < 1, 11/19 + 8/38 = 22/38 + 8/38 = 30/38
2/15 + 13/45 < 1, 2/15 + 13/45 = 6/45 + 13/45 = 19/45
3/8 + 5/9 < 1, 3/8 + 5/9 = 27/72 + 40/72 = 67/72
704
3/5 - 4/7 < 1, 3/5 - 4/7 = 21/35 - 20/35 = 1/35
16/17 - 5/34 < 1, 16/17 - 5/34 = 32/34 - 5/34 = 27/34
5/6 - 7/9 < 1, 5/6 - 7/9 = 15/18 - 14/18 = 1/18<br>7/9 - 5/7 < 1, 7/9 - 5/7 = 49/63 - 45/63 = 4/63
5/12 - 7/24 < 1, 5/12 - 7/24 = 10/24 - 7/24 = 3/24= 1/8<br>4/11 - 2/7 < 1, 4/11 - 2/7 = 28/77 - 22/77 = 6/77<br>