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(0,(3)+1,(3):1intreg7/9):(1+1/12)​

Răspuns :

Explicație pas cu pas:

(3/9+12/9:16/9):13/12

(3/9+12/9 ×9/16):13/12

(3/9+3/4):13/12

12+27/36:13/12

39/36:13/12

39/36×12/13

3/3×1/1=3/3=1