5+ 23 / 8 = 5 / 1 + 23 / 8 = 40 / 8 + 23 / 8 = 40+23 / 8 =
63 / 8
128 / 15 −12 = 128 / 15 − 12 / 1 = 128 / 15 + −12 / 1 = 128 / 15 + −180 / 15 = 128+−180 / 15 =
−52 / 15
5+ 23 / 8 = 5 / 1 + 23 / 8 = 40 / 8 + 23 / 8 = 40+23 / 8 =
63 / 8
128 / 15 −12 = 128 / 15 − 12 / 1 = 128 / 15 + −12 / 1 = 128 / 15 + −180 / 15 = 128+−180 / 15 =
−52 / 15