Автор - жасик2

4 2/5: ( 1 1/2-2/5)+(3/4+5/6):4 3/4

Ответ

Автор - Sleepe
4 2/5:(1 1/2-2/5)+(3/4+5/6):4 3/4=22/5:(3/2-2/5)+(3/4+5/6):19/4=22/5:(15/10-4/10)+(9/12+10/12):19/4=22/5:11/10+19/12:19/4=(22*10)/(5*11)+(19*4)/(12*19)=4/1+1/3=13/3=4 1/3

...вроде так

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