What is 12.133846384638463846... as a Fraction?

12.133846 equals 4044211333300 as a fraction.

How do you turn 12.133846 repeating into a fraction?

Detailed Answer:

Step 1: To convert 12.133846 repeating into a fraction, begin writing this simple equation:

n = 12.133846 (equation 1)

Step 2: Notice that there are 4 digits in the repeating block (3846) and 2 digits in the non-repeating part (13). Multiply both sides by 10⁶ = 1000000.

1000000 × n = 12133846.3846 (equation 2)

Step 3: Now subtract equation 1 from equation 2 to cancel the repeating block (or repetend) out.

1000000 × n = 12133846.3846
    100 × n = 12.133846
 999900 × n = 12132633

12132633999900 could be the answer, but it still can be put in the simplest form, i.e., reduced.

To simplify this fraction, divide the numerator and denominator by 3 (the GCF - greatest common factor).

n = 12132633999900 = 12132633 ÷ 3999900 ÷ 3 = 4044211333300. So,

12.133846 = 4044211333300 as the lowest possible fraction.

As the numerator is greater than the denominator, we have an improper fraction, so we can also express it as a mixed number, thus 4044211333300 is also equal to 1244611333300 when expressed as a mixed number.

The repeating decimal 12.133846 (vinculum notation) has a repeated block length of 4. It is also represented as 12.13384638463846... (ellipsis notation) which equals approximately 12.1338463846384638463846 (decimal approximation)(*).

The recurring decimal 12.133846 can be written as a ratio of two integers having 4044211 as the numerator and 333300 as the denominator. So, it is a rational number (named after ratio). It can be shown that a number is rational if its decimal representation is repeating or terminating.

(*) At present, there is no single universally accepted notation or phrasing for repeating decimals.