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a fost răspuns

cine imi zice si mie aici
(1+1/2+1/3+1/4+1/5)-(1/2+1/3+1/4+1/5-1)

Răspuns :

1+1/2+1/3+1/4+1/5-1/2-1/3-1/4-1/5+1=2

RobertD13
Aducem la numitor comun 120
(120/120+60/120+40/120+30/120+24/120)-(60/120+40/120+30/120+24/120-120/120)
274/120-34/120
240/120=2

Alte intrebari