3/2, 5/4, 7/6, 9/8, 11/10
The sequence of numerators is 3, 5, 7, 9, 11
So the next numerator is most probably 13
The sequence of denomintors is 2, 4, 6, 8, 10
So the next denominator is most probably 12
So the next fraction in the sequence is most probably 13/12
Edwin