1) 1 - 13/55 = 55/55 - 13/55 = 42/552) 6 - 9/20 = 120/20 - 9/20 = 111/203) 10 - 5 12/35 = 10 - 12/35 = 350/35 - 12/35 = 338/354) 8 - 4 5/22 = 8 - 422/22 = 8 - 422/22 = 8 - 88/22 = 8 - 4 = 4
1) 1 - 13/55 = 55/55 - 13/55 = 42/55
2) 6 - 9/20 = 120/20 - 9/20 = 111/20
3) 10 - 5 12/35 = 10 - 12/35 = 350/35 - 12/35 = 338/35
4) 8 - 4 5/22 = 8 - 422/22 = 8 - 422/22 = 8 - 88/22 = 8 - 4 = 4