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AIKALIUCHENON
Respondido

Considere A=2/3-1,4... e B=0,7-0,777... determine A÷B

Resposta :

Resposta:

Explicação passo a passo:

1,444...=

1+4/9=

9/9+4/9=

13/9

0,777...=

7/9

A=

2/3-1,44...=

2/3-13/9=

6/9-13/9=

-7/9

B=

0,7-0,777...=

7/10-7/9=

63/90-70/90=

-7/9

A:B=

-7/9:-7/9=

-7/9.-9/7=

+63/63=

+1

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