Yes, these numbers have no common factor.
still 13/49 as 13 is a prime number
7 over 13
78/294 = 13/49 in its simplest form
49/60 is the simplest form.
535/49 is in its simplest form.
49/24 is in its simplest form.
49/36 is in its simplest form.
40/49 is in its simplest form.
49/50 is the simplest form.
18/49 is in its simplest form.
49/74 is in its simplest form.
49/88 is already in simplest form.