Show me an example of a fraction which has a recurring decimal equivalent with two different digits repeating?
You can also "create" an own fraction.
For example, if you want to find the fraction to 0.121212121212...
Call 0,121212121212... for x
100x=12,1212121212...
100x-x=12
99x=12
x=12/99
Hope you can use this!
12/99
$${\frac{{\mathtt{12}}}{{\mathtt{99}}}} = {\frac{{\mathtt{4}}}{{\mathtt{33}}}} = {\mathtt{0.121\: \!212\: \!121\: \!212\: \!121\: \!2}}$$......
13/99
$${\frac{{\mathtt{13}}}{{\mathtt{99}}}} = {\mathtt{0.131\: \!313\: \!131\: \!313\: \!131\: \!3}}$$.....
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