Ответ:
5,8•7/9=58/10•7/8=58•7/10•8=4,9
3 1/3•5/7=10/3•5/7=10•5/3•7=50/21=2 8/21
4,9-2 8/21=4 9/10-2 8/21=4 189/210-2 80/210=2 109/210
Ответ: на 2 109/210
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Ответ:
5,8•7/9=58/10•7/8=58•7/10•8=4,9
3 1/3•5/7=10/3•5/7=10•5/3•7=50/21=2 8/21
4,9-2 8/21=4 9/10-2 8/21=4 189/210-2 80/210=2 109/210
Ответ: на 2 109/210