What is 2.5384384384... as a Fraction?

2.5384 equals 84533330 as a fraction.

How do you turn 2.5384 repeating into a fraction?

Detailed Answer:

Step 1: To convert 2.5384 repeating into a fraction, begin writing this simple equation:

n = 2.5384 (equation 1)

Step 2: Notice that there are 3 digits in the repeating block (384) and 1 digit in the non-repeating part (5). Multiply both sides by 10⁴ = 10000.

10000 × n = 25384.384 (equation 2)

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

10000 × n = 25384.384
   10 × n = 2.5384
 9990 × n = 25359

253599990 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 = 253599990 = 25359 ÷ 39990 ÷ 3 = 84533330. So,

2.5384 = 84533330 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 84533330 is also equal to 217933330 when expressed as a mixed number.

The repeating decimal 2.5384 (vinculum notation) has a repeated block length of 3. It is also represented as 2.5384384384... (ellipsis notation) which equals approximately 2.5384384384384384 (decimal approximation)(*).

The recurring decimal 2.5384 can be written as a ratio of two integers having 8453 as the numerator and 3330 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.