November 2021 1 7 Report
Обчислите.
1) 3 целых 1/7-(19/21- 1/14)
2) 2 целых 4/9 -(1 целая 5/6 - 11/12)
2) 3 целых 5/11 -(4 целых 15/33 - 3 целых 11/55)



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