0.3 = 3/10
65/1000 or 13/200
12 is an integer , not a fraction - and certainly not a fractoin! You could write it as 12/1 but there would be little point in doing so.
0.77
0.62 = 62/100 = 31/50
None, because there is no such thing as a fractoin.
130 is an integer and it makes little sense to express it as a fractoin but, if you must, you can write it as 130/1.
9/4
5/4
1. Count the number of digit after (to the right of) the decimal point. Call this value X. 2. Write the decimal number as a string, without the decimal point. This will be the numerator of your fraction (or fractoin, as you prefer). 3. The denominator is 1 followed by X 0s. 4. Simplify.
3/5.
0.75 = 3/4
6/10 or 60/100