What is 18.85757... as a Fraction?

18.857 equals 6223330 as a fraction.

How do you turn 18.857 repeating into a fraction?

Detailed Answer:

Step 1: To convert 18.857 repeating into a fraction, begin writing this simple equation:

n = 18.857 (equation 1)

Step 2: Notice that there are 2 digits in the repeating block (57) and 1 digit in the non-repeating part (8). Multiply both sides by 10³ = 1000.

1000 × n = 18857.57 (equation 2)

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

1000 × n = 18857.57
  10 × n = 18.857
 990 × n = 18669

18669990 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 3 (the GCF - greatest common factor).

n = 18669990 = 18669 ÷ 3990 ÷ 3 = 6223330. So,

18.857 = 6223330 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 6223330 is also equal to 18283330 when expressed as a mixed number.

The repeating decimal 18.857 (vinculum notation) has a repeated block length of 2. It is also represented as 18.8575757... (ellipsis notation) which equals approximately 18.85757575757 (decimal approximation)(*).

The recurring decimal 18.857 can be written as a ratio of two integers having 6223 as the numerator and 330 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.