There is no point A and so nothing is represented.
It is a mixed fraction.
Eight can be represented as the improper fraction 8/1
k often represents 1000 the multiple, not a fraction.
A decimal fraction is called such because it can be represented by a fraction with a denominator with a power of 10.
0.29 can be represented as 29 / 100
1 half
It is a mixed fraction.
The fraction is 1.
We would pronounce 0.40 as "Zero point four tenths" and as a fraction would be represented as 4/10.
The mixed fraction is 5 148/625
5 is an integer and not a fraction. It can be represented as a rational fraction (5/1) but not as a decimal fraction.
Eight can be represented as the improper fraction 8/1
rational number
610 is an integer and so cannot be represented as a decimal fraction.
k often represents 1000 the multiple, not a fraction.
mixednumber
It would be represented as 3333333/1.