What is 1.153153153... as a Fraction?

1.153 equals 128111 as a fraction.

How do you turn 1.153 repeating into a fraction?

Detailed Answer:

Step 1: To convert 1.153 repeating into a fraction, begin writing this simple equation:

n = 1.153 (equation 1)

Step 2: Notice that there are 3 digits in the repeating block (153), so multiply both sides by 10³ = 1000.

1000 × n = 1153.153 (equation 2)

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

1000 × n = 1153.153
   1 × n = 1.153
 999 × n = 1152

1152999 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 9 (the GCF - greatest common factor).

n = 1152999 = 1152 ÷ 9999 ÷ 9 = 128111. So,

1.153 = 128111 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 128111 is also equal to 117111 when expressed as a mixed number.

The repeating decimal 1.153 (vinculum notation) has a repeated block length of 3. It is also represented as 1.153153153... (ellipsis notation) which equals approximately 1.153153153153153 (decimal approximation)(*).

The recurring decimal 1.153 can be written as a ratio of two integers having 128 as the numerator and 111 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.