преобразуйте в десятичную доробь:
1)1,2; 2)5,8; 3)19,25; 4)19,8; 5)47,200;

1)12/10 = 6/5 = 1 1/5
2) 58/10 = 29/5 = 5 4/5
3) 1925/100 = 385/20 = 77/4 = 19 1/4
4) 198/10 = 99/5 =19 4/5
5) 47200/1000 = 944/20 = 236/5 = 47 1/5