Question

What is the decimal equivalent of 3/9?

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A. 0.2

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B. 0.3

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C. 0.4

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D. 0.5

Answer 1

`(3)/(9)=(3:3)/(9:3)=(1)/(3)=0.3333...=0.\overline{3}\to B.`

for the future:

`(1)/(9)=0.\overline{1}\\\\(2)/(9)=0.\overline{2}\\\\(3)/(9)=0.\overline{3}\\\vdots\\\\(n)/(9)=0.\overline{n}\ for\ n\in\{1;\ 2;\ 3;\ ...;\ 9\}`