What is 139.5333... as a Fraction?

139.53 equals 209315 as a fraction.

How do you turn 139.53 repeating into a fraction?

Detailed Answer:

Step 1: To convert 139.53 repeating into a fraction, begin writing this simple equation:

n = 139.53 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (3) and 1 digit in the non-repeating part (5). Multiply both sides by 10² = 100.

100 × n = 13953.3 (equation 2)

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

100 × n = 13953.3
 10 × n = 139.53
 90 × n = 12558

1255890 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 6 (the GCF - greatest common factor).

n = 1255890 = 12558 ÷ 690 ÷ 6 = 209315. So,

139.53 = 209315 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 209315 is also equal to 139815 when expressed as a mixed number.

The repeating decimal 139.53 (vinculum notation) has a repeated block length of 1. It is also represented as 139.5333... (ellipsis notation) which equals approximately 139.533333 (decimal approximation)(*).

The recurring decimal 139.53 can be written as a ratio of two integers having 2093 as the numerator and 15 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.