1) (5/6-3/10):(5/6-1/12-3/5)+(2-(1-1/2):3):1целую1/2
2) (1/7-2/5):(3/5+7/20)×1целую6/13-3/26×5целых1/5:3/5
Помогите пж"/"это дробная черта
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