What is 64.1666... as a Fraction?

64.166 equals 3856 as a fraction.

How do you turn 64.166 repeating into a fraction?

Detailed Answer:

Step 1: To convert 64.166 repeating into a fraction, begin writing this simple equation:

n = 64.166 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (6) and 2 digits in the non-repeating part (16). Multiply both sides by 10³ = 1000.

1000 × n = 64166.6 (equation 2)

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

1000 × n = 64166.6
 100 × n = 64.166
 900 × n = 57750

57750900 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 150 (the GCF - greatest common factor).

n = 57750900 = 57750 ÷ 150900 ÷ 150 = 3856. So,

64.166 = 3856 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 3856 is also equal to 6416 when expressed as a mixed number.

The repeating decimal 64.166 (vinculum notation) has a repeated block length of 1. It is also represented as 64.16666... (ellipsis notation) which equals approximately 64.1666666 (decimal approximation)(*).

The recurring decimal 64.166 can be written as a ratio of two integers having 385 as the numerator and 6 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.