Răspuns:
Explicație pas cu pas:
[0,2-0,4(6)]·(-5/2)-[-0,41(6)-3/4]:2,(3)=
= [⁹⁾2/10 - (46-4)/90]·(-5/2) - [- (416-41)/900 -²²⁵⁾3/4] : (23-2)/9 =
= [(18-42)/90]·(-5/2) -[(-375-675)/900]· 9/21 =
= (-24/90)· (-5/2) + 1050/900 ·9/21 =
= (24·5)/(90·2) + (1050·9)/(900·21) =
= 120/180⁽⁶⁰ + 105/210⁽¹⁰⁵ =
= ²⁾2/3 + ³⁾1/2 = (4+3)/6 = 7/6
#copaceibrainly
