What is 17.58333... as a Fraction?

17.583 equals 21112 as a fraction.

How do you turn 17.583 repeating into a fraction?

Detailed Answer:

Step 1: To convert 17.583 repeating into a fraction, begin writing this simple equation:

n = 17.583 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (3) and 2 digits in the non-repeating part (58). Multiply both sides by 10³ = 1000.

1000 × n = 17583.3 (equation 2)

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

1000 × n = 17583.3
 100 × n = 17.583
 900 × n = 15825

15825900 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 75 (the GCF - greatest common factor).

n = 15825900 = 15825 ÷ 75900 ÷ 75 = 21112. So,

17.583 = 21112 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 21112 is also equal to 17712 when expressed as a mixed number.

The repeating decimal 17.583 (vinculum notation) has a repeated block length of 1. It is also represented as 17.58333... (ellipsis notation) which equals approximately 17.5833333 (decimal approximation)(*).

The recurring decimal 17.583 can be written as a ratio of two integers having 211 as the numerator and 12 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.