312:х=9/70
х=312/1*70/9
х=2426 2/3
567:а=1/6
а=567/1*6/1
а=3402
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70•312:х=9
312:х=9/70
х=312/1*70/9
х=2426 2/3
42•567:а=7
567:а=1/6
а=567/1*6/1
а=3402