1 1/4×1 1/5×1 1/6×1 1/7×1 1/8-1/4

1 1/4×1 1/5×1 1/6×1 1/7×1 1/8-1/4=2

1 1\4 = 5\4  1 1\5 = 6\5    1 1\6 = 7\6    1 1\7 =8\7   1 1\8 = 9\41 1\4 x 1 1\5 = 5\4 x 6\5 =3\23\2 x 1 1\6 = 3\2 x 7\6 = 7\47\4 x 1 1\7 = 7\4 x 8\7 = 22 x 1 1\8 = 2 x 9\8 = 9\49\4 -1\4 =8\4=2