What is 1.1142857142857142857142857142857142857142857... as a Fraction?

1.1142857 equals 3935 as a fraction.

How do you turn 1.1142857 repeating into a fraction?

Detailed Answer:

Step 1: To convert 1.1142857 repeating into a fraction, begin writing this simple equation:

n = 1.1142857 (equation 1)

Step 2: Notice that there are 6 digits in the repeating block (142857) and 1 digit in the non-repeating part (1). Multiply both sides by 10⁷ = 10000000.

10000000 × n = 11142857.142857 (equation 2)

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

10000000 × n = 11142857.142857
      10 × n = 1.1142857
 9999990 × n = 11142846

111428469999990 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 = 111428469999990 = 11142846 ÷ 2857149999990 ÷ 285714 = 3935. So,

1.1142857 = 3935 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 3935 is also equal to 1435 when expressed as a mixed number.

The repeating decimal 1.1142857 (vinculum notation) has a repeated block length of 6. It is also represented as 1.1142857142857142857... (ellipsis notation) which equals approximately 1.1142857142857142857142857142857 (decimal approximation)(*).

The recurring decimal 1.1142857 can be written as a ratio of two integers having 39 as the numerator and 35 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.