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Respondido

9) Faça você:
a) 1/3+1/4=
b) 4/5+1/2=
c) 3/5+1/3=
d) 6/7−2/3=

Resposta :

Resposta:

[tex]a) 1/3+1/4= \frac{7}{12}\\b) 4/5+1/2 = 1\frac{3}{10} \\c) 3/5+1/3= \frac{14}{15} \\d) 6/7-2/3=\frac{4}{21}[/tex]

Explicação passo-a-passo:

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