What is 0.85666... as a Fraction?

0.856 equals 257300 as a fraction.

How do you turn 0.856 repeating into a fraction?

Detailed Answer:

Step 1: To convert 0.856 repeating into a fraction, begin writing this simple equation:

n = 0.856 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (6) and 2 digits in the non-repeating part (85). Multiply both sides by 10³ = 1000.

1000 × n = 856.6 (equation 2)

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

1000 × n = 856.6
 100 × n = 0.856
 900 × n = 771

771900 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 = 771900 = 771 ÷ 3900 ÷ 3 = 257300. So,

0.856 = 257300 as the lowest possible fraction.

The repeating decimal 0.856 (vinculum notation) has a repeated block length of 1. It is also represented as 0.85666... (ellipsis notation) which equals approximately 0.8566666 (decimal approximation)(*).

The recurring decimal 0.856 can be written as a ratio of two integers having 257 as the numerator and 300 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.