А) 1,2 = 1 и 2/10 = 12/10 = 6/5
б) 12,4 = 12 и 4/10 = 124/10 = 62/5
в) 13,5 = 13 и 5/10 = 135/10 = 27/2
г) 4,15 = 4 и 15/100 = 415/100 = 83/20
д) 6,28 = 6 и 28/100 = 628/100 = 157/25
е) 10,08 = 10 и 8/100 = 1008/100 = 252/25
ж) 70,25 = 70 и 25/100 = 725/100 = 29/4
з) 99,98 = 99 и 98/100 = 9998/100 = 4999/50
и) 300,42 = 300 и 42/100 = 30042/100 = 15021/50
к) 5,026 = 5 и 26/1000 = 5026/1000 = 2513/500
л) 10,002 = 10 и 2/1000 = 10002/1000 = 5001/500
м) 50,0505 = 50 и 505/10000 = 500505/10000 = 100101/2000