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calculați 9/10×(-7/8)
-8/27×(9/16)


Răspuns :

9/10×(-7/8)=
-63/80
sau =-0.7875



-8/27×(9/16)=
-1/3×1/2
=-1/6
sau = -0.166667
9/10x-7/8=-63/80
-8/27x9/16=-72/432----->se simplifica prin 72 si iti da -1/6