280% as an improper fraction in its simplest form is 14/5
It is: 14/25
14, like any integer, can be written as a fraction in simplest form by putting it over 1. 14% = 7/50
14:45 written as a fraction in simplest form is 1/3
2.8 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 in its simplest form. Its equivalent, in rational form, is 28/10 which simplifies to 14/5.
9/14 is in its simplest form.
63/98 = 9/14
2 over 14 as a fraction in its simplest form is 1/7