What is 5.3845454545... as a Fraction?

5.3845 equals 59231100 as a fraction.

How do you turn 5.3845 repeating into a fraction?

Detailed Answer:

Step 1: To convert 5.3845 repeating into a fraction, begin writing this simple equation:

n = 5.3845 (equation 1)

Step 2: Notice that there are 2 digits in the repeating block (45) and 2 digits in the non-repeating part (38). Multiply both sides by 10⁴ = 10000.

10000 × n = 53845.45 (equation 2)

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

10000 × n = 53845.45
  100 × n = 5.3845
 9900 × n = 53307

533079900 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 9 (the GCF - greatest common factor).

n = 533079900 = 53307 ÷ 99900 ÷ 9 = 59231100. So,

5.3845 = 59231100 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 59231100 is also equal to 54231100 when expressed as a mixed number.

The repeating decimal 5.3845 (vinculum notation) has a repeated block length of 2. It is also represented as 5.38454545... (ellipsis notation) which equals approximately 5.384545454545 (decimal approximation)(*).

The recurring decimal 5.3845 can be written as a ratio of two integers having 5923 as the numerator and 1100 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.