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Scrieti numarul 4/5 ca suma de doua numere : a) rationale b) diferite

Răspuns :

a) 2/5+2/5=4/5
b) 1/5+3/5=4/5 ,3/5+1/5=4/5
a) 2/5+2/5=2+2/5=4/5
b) 1/5+3/5=1+3/5=4/5
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