Respuesta :
To answer this problem, note that the line over 12 signifies that the numbers are repeating. This means that the number is 3.12121212...
To convert the item to a rational number, divide the repeating digits with 9. In this case, since the repeating digits are 1 and 2, divide 12 by 99. The rational number then becomes 3 12/99. Simplifying further the fraction gives 4/33. Thus, the answer is 3 4/33.
To convert the item to a rational number, divide the repeating digits with 9. In this case, since the repeating digits are 1 and 2, divide 12 by 99. The rational number then becomes 3 12/99. Simplifying further the fraction gives 4/33. Thus, the answer is 3 4/33.