Odpowiedź :
19/20-13/30=57/60-26/60=31/60
15/18-3/4=30/36-27/36=3/36=1/12
26/27-7/9=26/27-21/27=5/27
11/12-7/8=22/24-21/24=1/24
4 4/5-6/7=4 28/35-30/35=3 63/35-30/35=3 33/35
3 5/16-5/6=3 15/48-40/48=2 63/48-40/48=2 23/48
5 25/36-13/24=5 50/72-39/72=5 11/72
8 11/18-22/27=8 33/54-44/54=7 87/54-44/54=7 43/54
1. = 57/60 - 26/60 = 31/60
2. 30/36 - 27/36 = 3/36 =1/12
3. 26/27- 21/27 = 5/27
4. 22/24 - 21/24 = 1/24
5. 4 28/35 - 30/35 = 3 33/35
6. 3 15/48 - 40/48 = 2 23/48
7. 5 50/72 - 39/72 = 5 11/72
8. 8 33/54 - 44/54 = 7 43/54
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