Answer:
See below.
Explanation:
Let the number be x.
450 more than a number divided by six equal to 504 more than the same number divided by 15
There are different ways of interpreting this.
Here's one way:
450 + x/6 = 504 + x/15
Here's another way of interpreting it:
(450 + x)/6 = (504 + x)/15
There are other ways to interpret it.