42/490 in simplest form is 3/35.
2/5
0.0857
XD is not in the standard form for a Roman numeral, but I would guess its value is 490. It should be written as CDXC
It is already written in decimal form.
42/490 in simplest form is 3/35.
31/98
4/90 = 2/45
2/5
0.0857
XD is not in the standard form for a Roman numeral, but I would guess its value is 490. It should be written as CDXC
It is already written in decimal form.
It is: 2^1 times 5^1 times 7^2 = 490
Simplest form
3/7 is in its simplest form.
7
490 = 490