The fraction 211/1000 cannot be reduced any more.
you reduce the fraction and you get 250 over 1000
135 over 1000 reduces to 27 over 200
375/1000 = 3/8
6/1000 = 3/500
To 21/50
1/800
186/1000 = 93/500 which is as far as you can reduce it.
it does not reduce down at all
The fraction 379/1000 cannot be reduced any more.
0.211 = 211 / 1000
0.0142
2 and 481 over 1000 then reduce