What is 13.29285285285... as a Fraction?

13.29285 equals 1106638325 as a fraction.

How do you turn 13.29285 repeating into a fraction?

Detailed Answer:

Step 1: To convert 13.29285 repeating into a fraction, begin writing this simple equation:

n = 13.29285 (equation 1)

Step 2: Notice that there are 3 digits in the repeating block (285) and 2 digits in the non-repeating part (29). Multiply both sides by 10⁵ = 100000.

100000 × n = 1329285.285 (equation 2)

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

100000 × n = 1329285.285
   100 × n = 13.29285
 99900 × n = 1327956

132795699900 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 12 (the GCF - greatest common factor).

n = 132795699900 = 1327956 ÷ 1299900 ÷ 12 = 1106638325. So,

13.29285 = 1106638325 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 1106638325 is also equal to 1324388325 when expressed as a mixed number.

The repeating decimal 13.29285 (vinculum notation) has a repeated block length of 3. It is also represented as 13.29285285285... (ellipsis notation) which equals approximately 13.29285285285285285 (decimal approximation)(*).

The recurring decimal 13.29285 can be written as a ratio of two integers having 110663 as the numerator and 8325 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.