What is 11.22571571571... as a Fraction?

11.22571 equals 112144999900 as a fraction.

How do you turn 11.22571 repeating into a fraction?

Detailed Answer:

Step 1: To convert 11.22571 repeating into a fraction, begin writing this simple equation:

n = 11.22571 (equation 1)

Step 2: Notice that there are 3 digits in the repeating block (571) and 2 digits in the non-repeating part (22). Multiply both sides by 10⁵ = 100000.

100000 × n = 1122571.571 (equation 2)

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

100000 × n = 1122571.571
   100 × n = 11.22571
 99900 × n = 1121449

n = 112144999900 (answer)

11.22571 = 112144999900 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 112144999900 is also equal to 112254999900 when expressed as a mixed number.

The repeating decimal 11.22571 (vinculum notation) has a repeated block length of 3. It is also represented as 11.22571571571... (ellipsis notation) which equals approximately 11.22571571571571571 (decimal approximation)(*).

The recurring decimal 11.22571 can be written as a ratio of two integers having 1121449 as the numerator and 99900 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.