It is: 75 over 2
90/450 simplifies to 1/5
5/9
4/9
9/149/14
1/20 or 1 over twenty
hcf(450, 500) = 50 ⇒ 450/500 = (450÷50)/(500÷50) = 9/10
450 grams is 450/1000 or 225/500 or 45/100 or 9/20 (9/20 being simplest form) are some ways to represent it as a fraction of a kilogram.
225+225=450
4450/100 = 9/2 = 41/2
450 is an integer and not a fraction. However, it can be expressed in rational form as 450/1. And that is its simplest form.
225