1) 1 5/8 + 2 1/54 = 1 135/216 + 2 4/216 = 3 139/216
2) 7 1/12 - 3 139/216 = 7 18/216 - 3 139/216 = 6 234/216 - 3 139/216 = 3 95/216
1) 1 5/8 + 2 1/54 = 1 135/216 + 2 4/216 = 3 139/216
2) 7 1/12 - 3 139/216 = 7 18/216 - 3 139/216 = 6 234/216 - 3 139/216 = 3 95/216