6) 5 17/19+4 14/19=10 12/19
12 2/19-10 12/19=1 9/19
7) 12 8/24-8=8 8/24
8 8/24-4 1/24=4 7/24
4 7/24+1 21/24=5 28/24=6 4/24
решение ниже........................................
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6) 5 17/19+4 14/19=10 12/19
12 2/19-10 12/19=1 9/19
7) 12 8/24-8=8 8/24
8 8/24-4 1/24=4 7/24
4 7/24+1 21/24=5 28/24=6 4/24
решение ниже........................................