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1 calculati (-25/37)·(7/15+3/20)



Răspuns :

(-25/37)·(7/15+3/20) =
=(-25/37)·(28+9)/60=
=-25/37·37/60=
=-25/60=
=5/12

-25/37=-0,(675)
7/15+3/20=0,4(6)+0,15=0,61(6)
-0,(675)·0,61(6)=-041(6)
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