The answer depends on whether you mean 0.1212... (repeating) or 0.1222... (repeating). Clearly, the answers will be different in the two cases. So, if you want a proper answer, please try to post questions which include all the relevant information.
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3/250
0.78 repeating as a fraction = 78/99
67 is an integer, not a fraction, and it is closer to 012 (= 12).
What is 1.49 repeating (9 is repeating)
0.54 repeating as a fraction = 54/99 or 6/11