-0.312 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. Being a decimal, there is no simpler form. Its rational equivalent is -312/1000 which can be simplified to -39/125. But simplification means that you lose information about the precision of the fraction and end up with a clumsier number.
183/1000
-58/25
-46% as a fraction in its simplest form is -23/50
It is -2/10 or -1/5 in its simplest form
The simplest way is to write it as -0.2 which 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 rational equivalent is -2/10 which can be simplified, if required.
Negative 0.755 as a fraction in simplest form is -151/200.
As a fraction it is -1/4 in its simplest form
-9/10
-129/500
183/1000
It is a negative fraction of -7/18 in its simplest form
Expressed as a proper fraction in its simplest form, -0.35 is equal to -7/20 or negative seven twentieths.
-129/500
-3/5
-58/25
It would be -3/1
-46% as a fraction in its simplest form is -23/50