Răspuns :

Răspuns:

[tex]\frac{3}{9} +\frac{1}{2} *\frac{5}{10} = \frac{1}{3} +\frac{5}{20} =\frac{20+15}{60} =\frac{35}{60} =\frac{7}{12}[/tex]

Explicație pas cu pas:

Amplifici cu 20 [tex]\frac{1}{3}[/tex] si cu 3 [tex]\frac{5}{20}[/tex]

Simplifici cu 5 [tex]\frac{35}{60}[/tex]

Targoviste44id

[tex]\it0,(3)+\dfrac{1}{2}\cdot0,5=\dfrac{\ 3^{(3}}{9}+\dfrac{1}{2}\cdot\dfrac{1}{2}=\dfrac{^{4)}1}{\ 3}+\dfrac{^{3)}1}{\ 4} =\dfrac{4+3}{12}=\dfrac{7}{12}[/tex]

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