2: 7. 5: 8.7: 9.86: 9.45: 6.25: 4.75: 12.36: 11.48: 15.89: 21.78: 15.55: 12.12: 17.67: 74.36: 44.с проверкой

2:7=0,2857
5:8=0,625
7:9=0,7778
86:9=9,5556
45:6=7,5
25:4=6,25
75:12=6,25
36:11=3,2727
48:15=3
89:21=4,2381
78:1-78
5,55:12=0,4625
12:17=0,7059
67:74=0,9054
36:44=0,8182

2:7-0.285;5:8-0.625;7:9-077;86:9-9.55;