525 = 525/1, although I see no reason why anyone would wish to write it like that.
x = 0.583333 100x = 58.3333 1000x = 583.3333 900x = 525 x = 525/900 = 7/12
0.525 written as a fraction = 525/1000
tl
It is 525/1 inches.
525% = 21/4
It is 525/1 grams. If you want it expressed as a fraction of some other quantity then you need to specify the second quantity.
525/1
525/1000 = 21/40
525 = DXXV
525 = quinientos veinticinco
1.3125