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Scrie fiecare fractie ca o diferenta de doua fractii:8/9,3/4,10/11,18/26,6/13

Răspuns :

8/9=10/9--2/9 ; 3/4= 8/4--5/4 ; 10/11=12/11--2/11 ; 18/26=20/26--2/26 ; 6/13=9/13--3/13 ;
15/9-7/9=8/9.
11/4-9/4=3/4.
16/11-6/11=10/11.
32/26-14/26=18/26.
18/13-12/13=6/13.