1) 5/7 + 0 = 5/72) 2/3 - 2/5 = 4/153) 5/6 + 3/8 = 19/244) 19/21 - 11/15 = 52/1055) 21/22 - 3/55 = 999/12106) 5/42 + 10/63 = 25/427) 11/21 - 2/35 = 71/1058) 5/24 + 7/60 = 7/15
1) 5/7 + 0 = 5/7
2) 2/3 - 2/5 = 4/15
3) 5/6 + 3/8 = 19/24
4) 19/21 - 11/15 = 52/105
5) 21/22 - 3/55 = 999/1210
6) 5/42 + 10/63 = 25/42
7) 11/21 - 2/35 = 71/105
8) 5/24 + 7/60 = 7/15