Answer :
If your asking for a same value fraction with a higher denominator, than 20/30, or 30/45
2/3
4/6
6/9
8/12
10/15
12/18
14/21
16/24
18/27
20/30
22/33
24/36
26/39
28/42
30/45
32/48
Plus the others with whole-number denominators, like
(2-2/3)/4, (3-1/3)/5, (4-2/3)/7, (5-1/3)/8, (6-2/3)/10, (7-1/3)/11, etc.
And also there are all the ones like
(-2,000) / (-3,000) . . . . . . (-3000 is certainly less than 50)
4/6
6/9
8/12
10/15
12/18
14/21
16/24
18/27
20/30
22/33
24/36
26/39
28/42
30/45
32/48
Plus the others with whole-number denominators, like
(2-2/3)/4, (3-1/3)/5, (4-2/3)/7, (5-1/3)/8, (6-2/3)/10, (7-1/3)/11, etc.
And also there are all the ones like
(-2,000) / (-3,000) . . . . . . (-3000 is certainly less than 50)