0.48:3/7=12/25x7/3= 28:25 7/18:14/27=7/18x27/14=3:40.12:0.8=12:8=3:2 6/17:15/34=6/17x34/15=4:5 12/19:27/38=12/19x38/27=8:9 14/15:0.56=14/15:14/25=25:15=5:3