№460
1) =1/12 и 2/3, 1/12 и 8/12
2)5/28 и 9/28
3) 11/100 и 3/10, 11/100 и 30/100
4)21/32 и 3/16, 21/32 и 6/32
5) 4/45 и 4/5, 4/45 и 36/45
6) 1/18 и 5/6, 1/18 и 15/18
№ 461
1) 21/60 и 25/60
2)55/120 и 4/120
3)9/48 и 48/48
4)22/36 и 21/36
5) 3/36 и 8/36
6) 16/84 и 39/84
7)32/60 и 25/60
8)14/60 и 5/60