17/9: 2 2/3 3 3/5: 2 2/10 3 3/8: 1/8-1 5/14×7

1 7/9:2 2/3=16*3/8*9=2/3
3 3/5:2 2/10=18*10/5*22=18/11=1 7/11
3 3/8:1/8-1 5/14*7
1)3 3/8:1/8=27*8/8*1=27/1=27
2)1 5/14*7=19*7/14*1=19/2=6 1/2
27-6 1/2=26 2/2-6 1/2=20 1/2