What is 2.125222... as a Fraction?

2.1252 equals 191279000 as a fraction.

How do you turn 2.1252 repeating into a fraction?

Detailed Answer:

Step 1: To convert 2.1252 repeating into a fraction, begin writing this simple equation:

n = 2.1252 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (2) and 3 digits in the non-repeating part (125). Multiply both sides by 10⁴ = 10000.

10000 × n = 21252.2 (equation 2)

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

10000 × n = 21252.2
 1000 × n = 2.1252
 9000 × n = 19127

n = 191279000 (answer)

2.1252 = 191279000 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 191279000 is also equal to 211279000 when expressed as a mixed number.

The repeating decimal 2.1252 (vinculum notation) has a repeated block length of 1. It is also represented as 2.125222... (ellipsis notation) which equals approximately 2.12522222 (decimal approximation)(*).

The recurring decimal 2.1252 can be written as a ratio of two integers having 19127 as the numerator and 9000 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.