Assuming you mean 40/124... its simplest form would be 4/31
124/1
33/40 is already in the simplest form.
124/15 cannot be simplified further.
3:10
57/40 is in its simplest form.
27/40 is in its simplest form.
21/40 is already in its simplest form
7/40 is in its simplest form
63/40 is in its simplest form.
24/124 = 6/31
3/40 is in its simplest form.
31 / 40 cannot be further simplified.