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What is 3.25 with the 5 repeating as a rational number

User Redskull
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2 Answers

6 votes
322 over 99 is your answer. Hope this helps!
User JuSchu
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3 votes
So,


3.2\overline{5}

Multiply it by 100.


3.2\overline{5}--\ \textgreater \ 325.5\overline{5}.

We now know that
325.5\overline{5} is 100 times of
3.2\overline{5}. If we subtract the first from the second, we will get 99 of the number. Then, we can simply divide by 99 and we will have it in fraction form.


325.5\overline{5}-3.2\overline{5}=322.3

Now, we put it over 99.


(322.3)/(99)

Of course, we cannot have decimals in fraction form, so we will just fix that.


(3223)/(990)= (11*293)/(2*3*3*5*11)=(293)/(2*3*3*5)=(293)/(90)\ or\ 3 (23)/(90)
User Fabien Warniez
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6.4k points