What is 0.13230230230... as a Fraction?

0.13230 equals 1321799900 as a fraction.

How do you turn 0.13230 repeating into a fraction?

Detailed Answer:

Step 1: To convert 0.13230 repeating into a fraction, begin writing this simple equation:

n = 0.13230 (equation 1)

Step 2: Notice that there are 3 digits in the repeating block (230) and 2 digits in the non-repeating part (13). Multiply both sides by 10⁵ = 100000.

100000 × n = 13230.230 (equation 2)

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

100000 × n = 13230.230
   100 × n = 0.13230
 99900 × n = 13217

n = 1321799900 (answer)

0.13230 = 1321799900 as the lowest possible fraction.

The repeating decimal 0.13230 (vinculum notation) has a repeated block length of 3. It is also represented as 0.13230230230... (ellipsis notation) which equals approximately 0.13230230230230230 (decimal approximation)(*).

The recurring decimal 0.13230 can be written as a ratio of two integers having 13217 as the numerator and 99900 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.