1. 1 115 : 45=16/15:4/5=16/15·5/4=80/60=1 20/60=1 1/3 2. 2 29 : 56=20/9:5/6=20/9·6/5=120/45=2 30/45=2 2/3 3. 4 16 : 1 23=25/6:5/3=25/6·3/5=75/30=2 15/30=2 1/2 4. 1 12 : 58=3/2:5/8=3/2·8/5=24/10=2 4/10=2 2/5 5. 1 19 : 415=10/9:4/15=10/9·15/4=150/36=4 6/36=4 1/6 6. 5 56 : 59=35/6:5/9=35/6·9/5=315/30=10 15/30=10 1/2 7. 1 79 : 1 13=16/9:4/3=16/9·3/4=48/36=1 12/36=1 1/3 8. 2 58 : 34=21/8:3/4=21/8·4/3=84/24=3 12/24=3 1/2 9. 2 215 : 45=32/15:4/5=32/15·5/4=160/60=2 40/60=2 2/3 10. 1 59 : 76=14/9:7/6=14/9·6/7=84/63=1 21/63=1 1/3 11. 1 78 : 2 14=15/8:9/4=15/8·4/9=60/72=5/6 12. 2 110 : 1 15=21/10:6/5=21/10·5/6=105/60=1 45/60=1 3/4
1) 1 1/15:4/5=16/15x5/4=80/60=1 20/60=1 1/3 2) 2 2/9:5/6=20/9x6/5=120/45=2 30/45=2 6/9=2 2/3 3) 4 1/6:1 2/3=25/6:5/3=25/6x3/5=75/30=2 15/30=2 1/2 4) 1 1/2:5/8=3/2x8/5=24/10=2 4/10=2 2/5 5) 1 1/9:4/15=10/9x15/4=150/36=4 6/36=4 1/6 6) 5 5/6:5/9=35/6x9/5=315/30=10 15/30=10 1/2 7) 1 7/9:1 1/3=16/9:4/3=16/9x3/4=48/36=1 12/36=1 1/3 8) 2 5/8:3/4=21/8x4/3=84/24=3 12/24=3 1/2 9) 2 2/15:4/5=32/15x5/4=160/60=2 40/60=2 2/3 10) 1 5/9:7/6=14/9x6/7=84/63=1 21/63=1 1/3 11) 1 7/8:2 1/4=15/8:9/4=15/8x4/9=60/72=10/12=5/6 12) 2 1/10:1 1/5=21/10:6/5=21/10x5/6=105/60=1 45/60=1 3/4
