What is 10.11142857142857142857142857142857142857142857... as a Fraction?

10.11142857 equals 3539350 as a fraction.

How do you turn 10.11142857 repeating into a fraction?

Detailed Answer:

Step 1: To convert 10.11142857 repeating into a fraction, begin writing this simple equation:

n = 10.11142857 (equation 1)

Step 2: Notice that there are 6 digits in the repeating block (142857) and 2 digits in the non-repeating part (11). Multiply both sides by 10⁸ = 100000000.

100000000 × n = 1011142857.142857 (equation 2)

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

100000000 × n = 1011142857.142857
      100 × n = 10.11142857
 99999900 × n = 1011141846

101114184699999900 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 285714 (the GCF - greatest common factor).

n = 101114184699999900 = 1011141846 ÷ 28571499999900 ÷ 285714 = 3539350. So,

10.11142857 = 3539350 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 3539350 is also equal to 1039350 when expressed as a mixed number.

The repeating decimal 10.11142857 (vinculum notation) has a repeated block length of 6. It is also represented as 10.11142857142857142857... (ellipsis notation) which equals approximately 10.11142857142857142857142857142857 (decimal approximation)(*).

The recurring decimal 10.11142857 can be written as a ratio of two integers having 3539 as the numerator and 350 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.