What is 331.33333... as a Fraction?

331.333 equals 9943 as a fraction.

How do you turn 331.333 repeating into a fraction?

Detailed Answer:

Step 1: To convert 331.333 repeating into a fraction, begin writing this simple equation:

n = 331.333 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (3) and 2 digits in the non-repeating part (33). Multiply both sides by 10³ = 1000.

1000 × n = 331333.3 (equation 2)

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

1000 × n = 331333.3
 100 × n = 331.333
 900 × n = 298200

298200900 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 300 (the GCF - greatest common factor).

n = 298200900 = 298200 ÷ 300900 ÷ 300 = 9943. So,

331.333 = 9943 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 9943 is also equal to 33113 when expressed as a mixed number.

The repeating decimal 331.333 (vinculum notation) has a repeated block length of 1. It is also represented as 331.33333... (ellipsis notation) which equals approximately 331.3333333 (decimal approximation)(*).

The recurring decimal 331.333 can be written as a ratio of two integers having 994 as the numerator and 3 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.