1) 3/12 + 25/30 = 1/4 + 5/6 = 3/12 + 10/12 = 13/12
2) 30/54 + 22/30 = 5/9 + 11/15 = 10/18 + 12/18 = 22/18 = 11/9
3) 12/27 + 14/21 = 4/9 + 2/3 = 8/18 + 12/18 = 20/18 = 10/9
1) 3/12 + 25/30 = 1/4 + 5/6 = 3/12 + 10/12 = 13/12
2) 30/54 + 22/30 = 5/9 + 11/15 = 10/18 + 12/18 = 22/18 = 11/9
3) 12/27 + 14/21 = 4/9 + 2/3 = 8/18 + 12/18 = 20/18 = 10/9