What is 1.293846384638463846... as a Fraction?

1.293846 equals 431239333300 as a fraction.

How do you turn 1.293846 repeating into a fraction?

Detailed Answer:

Step 1: To convert 1.293846 repeating into a fraction, begin writing this simple equation:

n = 1.293846 (equation 1)

Step 2: Notice that there are 4 digits in the repeating block (3846) and 2 digits in the non-repeating part (29). Multiply both sides by 10⁶ = 1000000.

1000000 × n = 1293846.3846 (equation 2)

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

1000000 × n = 1293846.3846
    100 × n = 1.293846
 999900 × n = 1293717

1293717999900 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 3 (the GCF - greatest common factor).

n = 1293717999900 = 1293717 ÷ 3999900 ÷ 3 = 431239333300. So,

1.293846 = 431239333300 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 431239333300 is also equal to 197939333300 when expressed as a mixed number.

The repeating decimal 1.293846 (vinculum notation) has a repeated block length of 4. It is also represented as 1.29384638463846... (ellipsis notation) which equals approximately 1.2938463846384638463846 (decimal approximation)(*).

The recurring decimal 1.293846 can be written as a ratio of two integers having 431239 as the numerator and 333300 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.