What is 2.11714285714285714285714285714285714285... as a Fraction?

2.11714285 equals 741350 as a fraction.

How do you turn 2.11714285 repeating into a fraction?

Detailed Answer:

Step 1: To convert 2.11714285 repeating into a fraction, begin writing this simple equation:

n = 2.11714285 (equation 1)

Step 2: Notice that there are 6 digits in the repeating block (714285) and 2 digits in the non-repeating part (11). Multiply both sides by 10⁸ = 100000000.

100000000 × n = 211714285.714285 (equation 2)

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

100000000 × n = 211714285.714285
      100 × n = 2.11714285
 99999900 × n = 211714074

21171407499999900 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 = 21171407499999900 = 211714074 ÷ 28571499999900 ÷ 285714 = 741350. So,

2.11714285 = 741350 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 741350 is also equal to 241350 when expressed as a mixed number.

The repeating decimal 2.11714285 (vinculum notation) has a repeated block length of 6. It is also represented as 2.11714285714285714285... (ellipsis notation) which equals approximately 2.11714285714285714285714285714285 (decimal approximation)(*).

The recurring decimal 2.11714285 can be written as a ratio of two integers having 741 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.