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(13/5-3/5)-(4/6+7/6-5/6)+18/9=?
Slash-ul reprezinta fractie., urgent, va rog!​

Răspuns :

Aln4ask

Răspuns:

13/5-3/5=10/5

4/6+7/6-5/6=6/6=1

10/5-1+18/9=10/5-5/5+18/9=5/5+18/9=45/45+90/45=135/45

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