Always.
Yes.
A fraction is a ratio
Certainly. Every fraction is a ratio.
a ratio is also called a fraction and vice versa. therefore whatever ratio you have it's also a fraction.
2.36 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 236/100 or 236:100 as a ratio. Both, the rational fraction and ratio can be simplified if required.
It is a simplified fraction or ratio.
A ratio can indicate division. If you have a ratio, x:y, then it can be thought of as x/y.
If the ratio is 4 out of 5, the fraction is 4 divided by 5, which is 0.8.
0.250 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 250/1000. You can simplify this rational fraction but the reduced form will not indicate the degree of precision.
63 is an integer, not a fraction.
A ratio is the same as a fraction.