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-8/5+2/3•(-4/9)=?
•=ori
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Răspuns :

-8/5+2/3x(-4/9)=
-8/5-8/27=
(-8x27-8x5)/(5x27)=
(-216-40)/135=
-256/135=-1,8(962)
-8/5+2/3*(-4/9)
-8/5-8/27
(-8*27-8*5)/(5*27)
(-216-40)/135
-256/135