8/3-(7/3-4/3)+12/3=
9/2+13/2-(4/2+1/2)=
9/7-5/7+(3/7-1/7+3/7=
14/11-(3/11+1/11+2/11)+8/11=
21/13-(4/13-1/13)+11/13+2/13=

Respuestas

Respuesta dada por: dolcegata
4
1)8/3-(7/3-4/3)+12/3=
8/3 -1+12/3=
20/3 -1=
17/3



2)9/2+13/2-(4/2+1/2)=
9/2+13/2-5/2=
17/2



3)9/7-5/7+(3/7-1/7+3/7)=
9/7-5/7+5/7=
9/7

4)14/11-(3/11+1/11+2/11)+8/11=
14/11-6/11+8/11=
16/11


5)21/13-(4/13-1/13)+11/13+2/13=
21/13 -3/13+11/13+ 2/13=
31/13

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