1. 6:7/9=6/1:7/9=6*9/1*7=54/7=7 5/7
2. 16:4/11=16/1:4/11=16*11/1*4=4*11/1*1=44/1=44
3. 13:26/29=13/1:26/29=13*29/1*26=1*29/1*2=29/2=14 1/2
4. 7/9:5=7/9:5/1=7*1/9*5=7/45
1. 11/15:3/8=11*8/15*3=88/45=1 43/45
2. 6/35:18/25=6*25/35*18=1*5/7*3=5/21
3. 12/55:48/77=12*77/55*48=1*77/55*4=77/220
4. 21/40:3/4=21*4/40*3=7*1/10*1=7/10
5. 9/16:6=9/16:6/1=9*1/16*6=3*1/16*2=3/32
6. 1 5/9 : 1 8/27=14/9:35/27=14*27/9*35=2*3/1*5=6/5=1 1/5