515 in an integer, not a fraction!
5/15 = 1/3
5.15 is, itself, 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 515/100. You can simplify this rational fraction if you so wish.
515 is an integer and not a fraction. However, it can be expressed in rational form as 515/1 which cannot be simplified.
515 is an integer and so there is not really a sensible way of writing it as a fraction or mixed number.
To simplify a fraction, you find a number that can be divided by the fraction you are simplifying. sometimes this does not always work and the fraction can not be simplified.
5/15 = 1/3
1024 is an integer, not a fraction. There is, therefore, no way to simplify its representation.
224 is an integer, not a fraction and there is no sensible way to express it as a fraction. Consequently, you cannot simplify it.
Simplify the fraction for your answer
Because of cultural reasons and also for a more 'cleaner' fraction, it is recommended to simplify.
under 27 you put a 1 ...... then u simplify with the other fraction
First you add the fractions, then you see if you can simplify the result. You simplify it just as you would simplify any other fraction.
Press the simplify button.