What is 1.65714571457145714... as a Fraction?

1.65714 equals 8284949995 as a fraction.

How do you turn 1.65714 repeating into a fraction?

Detailed Answer:

Step 1: To convert 1.65714 repeating into a fraction, begin writing this simple equation:

n = 1.65714 (equation 1)

Step 2: Notice that there are 4 digits in the repeating block (5714) and 1 digit in the non-repeating part (6). Multiply both sides by 10⁵ = 100000.

100000 × n = 165714.5714 (equation 2)

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

100000 × n = 165714.5714
    10 × n = 1.65714
 99990 × n = 165698

16569899990 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 = 16569899990 = 165698 ÷ 299990 ÷ 2 = 8284949995. So,

1.65714 = 8284949995 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 8284949995 is also equal to 13285449995 when expressed as a mixed number.

The repeating decimal 1.65714 (vinculum notation) has a repeated block length of 4. It is also represented as 1.6571457145714... (ellipsis notation) which equals approximately 1.657145714571457145714 (decimal approximation)(*).

The recurring decimal 1.65714 can be written as a ratio of two integers having 82849 as the numerator and 49995 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.