What is 1.81666... as a Fraction?

1.816 equals 10960 as a fraction.

How do you turn 1.816 repeating into a fraction?

Detailed Answer:

Step 1: To convert 1.816 repeating into a fraction, begin writing this simple equation:

n = 1.816 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (6) and 2 digits in the non-repeating part (81). Multiply both sides by 10³ = 1000.

1000 × n = 1816.6 (equation 2)

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

1000 × n = 1816.6
 100 × n = 1.816
 900 × n = 1635

1635900 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 15 (the GCF - greatest common factor).

n = 1635900 = 1635 ÷ 15900 ÷ 15 = 10960. So,

1.816 = 10960 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 10960 is also equal to 14960 when expressed as a mixed number.

The repeating decimal 1.816 (vinculum notation) has a repeated block length of 1. It is also represented as 1.81666... (ellipsis notation) which equals approximately 1.8166666 (decimal approximation)(*).

The recurring decimal 1.816 can be written as a ratio of two integers having 109 as the numerator and 60 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.