Arithmetic: Subtraction of Fractions

Problem	Minuend	Subtrahend	Difference
1	1/12	7/12	-1/2
2	5/12	1/18	13/36
3	7/22	7/10	-21/55
4	1/16	5/18	-31/144
5	5/12	7/24	1/8
6	5/12	7/22	13/132
7	5/22	7/16	-37/176
8	6/7	5/8	13/56
9	1/24	2/15	-11/120
10	8/9	1/16	119/144
11	1/22	8/15	-161/330
12	5/8	3/8	1/4
13	3/14	5/12	-17/84
14	7/22	7/10	-21/55
15	3/5	4/5	-1/5
16	5/21	5/12	-5/28
17	5/18	1/10	8/45
18	5/21	7/22	-37/462
19	4/21	1/18	17/126
20	3/20	1/15	1/12
21	7/12	1/21	15/28
22	8/15	3/16	83/240
23	3/16	1/14	13/112
24	2/3	8/9	-2/9
25	1/12	1/14	1/84
26	3/20	1/14	11/140
27	5/12	8/15	-7/60
28	3/5	11/12	-19/60
29	3/14	1/12	11/84
30	3/5	5/24	47/120
31	7/18	1/14	20/63
32	3/14	3/16	3/112
33	4/9	5/24	17/72
34	8/21	1/14	13/42
35	6/7	3/7	3/7
36	2/3	1/12	7/12
37	7/10	3/20	11/20
38	5/12	7/18	1/36
39	8/9	10/21	26/63
40	5/7	5/9	10/63
41	1/16	5/14	-33/112
42	7/24	7/18	-7/72
43	5/18	3/14	4/63
44	2/21	7/10	-127/210
45	5/22	7/12	-47/132
46	7/18	3/20	43/180
47	7/20	7/16	-7/80
48	1/20	3/20	-1/10
49	3/14	3/14	0
50	5/24	1/15	17/120