Răspuns:
1. a) 28/10
b) 33,(3)/10
c) 8,(3)/10
d) 1245,7/10
e) 19,3/10
2. a) 12/100 = 3/25
b) -15/10 = -3/2
c) 2457/1000
d) -71/10
e) 125/1000 = 1/8
3. a) 3/9 = 1/3
b) 15-1/9 = -14/9
c) 2457-2/999 = 2455/999
d) 71-7/9 = 64/9
e) 125/999
4. a) 15-1/90 = 14/90 = 7/45
b) 1015-101/900 = -914/900 = -457/450
c) 23457-23/9990 = 23434/9990 = 11717/4995
d) 73251-7325/9000 = -65926/9000 = -16489/2250
e) 5412-54/9900 = 5358/9900 = 2679/4950