It is already in simplest form, i do not understand the question if i am wrong
296/375 cannot be simplified.
3/8
3/4
0.375
0.375 = 3/8
1/5
375/300 = 5/4 = 11/4 or 1.25
37.5% = 1845/4920, not in simplest form.
3 over 8 is the final form
375/1000
3/8
0.7143