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SlavaLuca
a fost răspuns

completati lantul de calcule
a) 2/7+1/7------>?+4/7------->-3/5----->+1/5
b)3/11+6/11------>?-9/11----->?+5/6----->-2/6

Răspuns :

Silvika003
a)2/7+1/7-----3/7+4/7-----7/7-3/5----14/35+1/5----21/35
b)3/11+6/11----9/11-9/11-----0+5/6----5/6-2/6----3/6

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