What is 13.154615346153461534615346153... as a Fraction?

13.1546153 equals 657724194999950 as a fraction.

How do you turn 13.1546153 repeating into a fraction?

Detailed Answer:

Step 1: To convert 13.1546153 repeating into a fraction, begin writing this simple equation:

n = 13.1546153 (equation 1)

Step 2: Notice that there are 5 digits in the repeating block (46153) and 2 digits in the non-repeating part (15). Multiply both sides by 10⁷ = 10000000.

10000000 × n = 131546153.46153 (equation 2)

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

10000000 × n = 131546153.46153
     100 × n = 13.1546153
 9999900 × n = 131544838

1315448389999900 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 2 (the GCF - greatest common factor).

n = 1315448389999900 = 131544838 ÷ 29999900 ÷ 2 = 657724194999950. So,

13.1546153 = 657724194999950 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 657724194999950 is also equal to 137730694999950 when expressed as a mixed number.

The repeating decimal 13.1546153 (vinculum notation) has a repeated block length of 5. It is also represented as 13.15461534615346153... (ellipsis notation) which equals approximately 13.154615346153461534615346153 (decimal approximation)(*).

The recurring decimal 13.1546153 can be written as a ratio of two integers having 65772419 as the numerator and 4999950 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.