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daca a= 1/2+1/3+1/4 si b=1/2+2/3+3/4 aflati a+b
VA ROG REPEDEEE!!!! DAU COROANA


Răspuns :

Răspuns:

a=1/2+1/3+1/4=6/12+4/12+3/12=13/12

b=1/2+2/3+3/4=6/12+8/12+9/12=23/12

a+b=13/12+23/12=36/12=3

Explicație pas cu pas: