It is 54/23.
46/54 = 23/27; as there is now a prime number in the fraction, that is its simplest form.
23/27 (because 23 is prime)
54.2 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. And, being a decimal, there is no simpler form. Its rational equivalent is 542/10 which can be simplified to 271/5.
If by "54" you mean ".54", then that decimal converted to a fraction is 54/100, which can be simplified to 27/50.If by "54" you mean ".54545454... etc" (repeating), that decimal converted to a fraction is 6/11.(WikiAnswers really needs to allow periods in their questions, it's not your fault.)
Simplified, it is 27/5.
1/2
x : y = x / x + y 54 : 30 = 54 / 54 + 30 1 + 30 = 31
5.4 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 54/10. You can simplify this rational fraction if required.
54/126 simplest form
The fraction 35/54 is already in simplest form.
As an improper fraction in its simplest form it is -54/25
46/54 = 23/27