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(-1/333+5/666-10/999)×(-333/20)

Răspuns :

( -1 / 333 + 5 / 666 - 10 / 999 ) x ( -333 / 20 ) = 

= ( -6 / 1998 + 15 / 1998 - 20 / 1998 ) x ( -333 / 20 ) 

= ( 9 / 1998 - 20 / 1998 ) x ( -333 / 20 ) 

= -11 / 1998 x  -333 / 20 

= 11 / 6 x 1 / 20  

= 11 / 120 
=(-1/333)x(-333/20)+(5/666)x(-333/20)-(10/999)x(-333/20)=1/20-5/40+10/60=
=(6-15+20)/120=11/120



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