8|9: (3|4+2|3) 8|9: 3|4+2|3 1-9|16: (2 1|4-1|12) 1-9|16: 2 1|4-1|12 (1-9|16): 2 1|4-1|12 (1-9|16): (2 1|4-1|12)

8|9:(3|4+2|3)=8/9:(9/12+8/12)=8/9*12/17=32/51
8|9:3|4+2|3=8/9*4/3+2/3=32/27+2/3=32/27+18/27=50/27=1 23/27

1-9|16:(2 1|4-1|12)=1-9/16:(2 3/12-1/12)=1-9/16:1 2/12=1-9/16*12/14=
1-9|16:2 1|4-1|12
(1-9|16):2 1|4-1|12
(1-9|16):(2 1|4-1|12)