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Both = 3.3 repeating
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Use long division.

33/10 = 3.3 (that is it. non repeating)

10/3 = 3.33... (repeating)

They are, obviously, not the same value.
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They are not the same:

33/10=3 3/10.  10/3=3 1/3
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99!=100
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33/10 = 3.3 with no more repeating threes
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by
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Only one is repeating. The other is just 3.3
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I feel like your actual question is

>How do I express a repeating decimal number as a fraction?

For example,

       1.23456456456...

    =  123.456456456... / 100

    = (123  + 456/999)  / 100

    = (123·999 + 456) / 99900
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33.333... / 10 = (33.333... x 3/10) / (10 x 3/10)

...  = (99.999.../10) / (3)

... = (100 / 10) / (3)

= 10 / 3

Note that the denominator '3' is not a repeating decimal.  Only the original '33.33333....' is.
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U cant. 33/10=3.3   10/3=3.333...3
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