А)5/6=15/18
4/9=8/18
2/3=12/18
Б)3 7/8=3 21/24
11/12=22/24
2 5/6=2 20/24
В)5/9=20/36
1 11/12=1 33/36
7/18=14/36
6 1/2=6 12/36
Г)4 2/5=4 18/45
2 5/9=2 25/45
11/15=33/45
7 1/3=7 15/45