1.3/14-5/8
=24/112-70/112
=-46/112
=-23/56
2.2/3-1/2
=4/6-3/6
=1/6
3.5/6-1/8
=40/48-6/48
=34/48
=17/24
4.1/2-1/3
=3/6-2/6
=1/6
5.7/8-5/9
=63/72-40/72
=23/72
6.9/11-3/7
=63/77-33/77
=30/77
7.7/10-1/3
=21/30-10/30
=11/30
8.11/12-1/4
=11/12-3/12
=8/12
=2/3
9.19/42-5/21
=19/42-10/42
=9/42
=3/14
10.23/40-3/8
=23/40-15/40
=8/40
=1/5
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