Question

Calcule a expressão numérica
1/5+{[4/9+(1/2•2/4-1/9)]} =
Preciso do cálculo
Me ajudem pfvv

Answer 1

Resposta: 47/60

Explicação passo-a-passo:

=1/5+{[4/9+(1/2⋅2/(2)²−1/9)]}=

=1/5+{[4/9+(1/2⋅1/2−1/9)]}=

=1/5+{[4/9+(1/4−1/9)]}=

=1/5+{[4/9+(9−4/4⋅9)]}=

=1/5+{[4/9+(5/36)]}=

=1/5+{[(4⋅4)+5/9⋅4]}=

=1/5+{[7/12]}=

=12+(7⋅5)/5⋅12=

=47/60