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4×10^3+8×10^2+1×10+7×1/10+2/10^2+5/10^3=

(^ =la puterea ; / =supra )
Ajutoor


Răspuns :

4000000/1000+800000/1000+10000/1000+700/1000+20/1000+5/1000= 4810725/1000=481,725