Since the numerator of the fraction is prime, and is not a factor of the denominator, the proper fraction 19/36 cannot be simplified any further.
You cannot simplify 31 over 36 because 31 is prime.
can you simplify 19/95
you do
Yes
36/8 = 9/2
one over two
36/42
19/12
36/24=3/2
45/36 = 5/4
17/18
3/7