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Vioricanazaru
a fost răspuns

2/3-(4/5-2/3+1/4)+(3/5-1/3)-(17/8-7/4)+3/5-2/15=?

Răspuns :

6adri6
2/3-(4/5-2/3+1/4)+(3/5-1/3)-(17/8-7/4)+3/5-2/15=
=2/3-[(48+40+15)/60]+(9-5)/15-(17-14)/8+(9-2)/15=
=2/3-103/60+4/15-3/8+7/15=
=(40-103+16+28)/60-3/8=
= -19/60-3/8=
= (-38-45)/120=-83/120

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