hunter9923 hunter9923
  • 03-04-2019
  • Mathematics
contestada

1.32 repeating as a fraction​

Respuesta :

calculista
calculista calculista
  • 13-04-2019

Answer:

[tex]\frac{131}{99}[/tex]

Step-by-step explanation:

Let    

[tex]x=1.323232...[/tex]

Multiply x by a power of  [tex]10[/tex], one that keeps the decimal part of the number the same:  

[tex]100x=132.3232..[/tex]

Subtract [tex]x[/tex] from [tex]\\100x[/tex]

[tex]100x-x=132.3232...-1.3232...=131[/tex]

The repeating decimals should cancel out

[tex]\\99x=131[/tex]

solve for x

Divide by [tex]99[/tex] both sides

[tex]x=\frac{131}{99}[/tex]

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