What is 0.277142714271427142... as a Fraction?

0.277142 equals 55423199980 as a fraction.

How do you turn 0.277142 repeating into a fraction?

Detailed Answer:

Step 1: To convert 0.277142 repeating into a fraction, begin writing this simple equation:

n = 0.277142 (equation 1)

Step 2: Notice that there are 4 digits in the repeating block (7142) and 2 digits in the non-repeating part (27). Multiply both sides by 10⁶ = 1000000.

1000000 × n = 277142.7142 (equation 2)

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

1000000 × n = 277142.7142
    100 × n = 0.277142
 999900 × n = 277115

277115999900 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 5 (the GCF - greatest common factor).

n = 277115999900 = 277115 ÷ 5999900 ÷ 5 = 55423199980. So,

0.277142 = 55423199980 as the lowest possible fraction.

The repeating decimal 0.277142 (vinculum notation) has a repeated block length of 4. It is also represented as 0.27714271427142... (ellipsis notation) which equals approximately 0.2771427142714271427142 (decimal approximation)(*).

The recurring decimal 0.277142 can be written as a ratio of two integers having 55423 as the numerator and 199980 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.