It can be written in the form of the ratio 55555/100000.
Yes they are.A terminating number such as a.bcdef is equivalent to abcdef/1000000. A repeating number such as a.bcdbcd... is equivalent to abcd/999 [the number of 9s is the length of the repeating string of digits.] So, in both cases the number can be written in the form of p/q where p and q are integers and q > 0.
It is a rational number because it is a terminating decimal number which can also be expressed as a fraction
Yes, of course. Different denominators in the rational equivalent give rise to different lengths of repeating strings.
It is 5/9 because it is equivalent to 0.55555...repeating
No, 1/2 is rational, but not a whole number.
It is rational because it can be expressed as the ratio 400040004/10000000000.
It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.
Convert them to decimals and order them least to greatest.
A rational number is, by definition, the answer from dividing one integer by another.