August 2022 1 2 Report
решите пожалуйста :)

1) 5 2\7 - 2 5\7 =

2) 14 6\20 - 8 12\20 =

3) 8 3\14 - 5 9\14 =

4) 7 10\21 - 4 16\21 =

5) (12 5\22 + 7 17\22) - (13 7\23 - 9 15\23) =

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