120/143 is in its simplest form.
77/143 = 7/13
220/143 = 20/13
39/143 = 3/11
13/19
209/143 = 19/13
143/250
17.875 = 17875/1000 = 143/8
143/8
143/50
10/11
Since the numbers 143 and 500 share no common positive integer factors other than 1, the proper fraction 143/500 is already expressed in simplest form.
143