What is 1.45454... as a Fraction?

1.454 equals 1611 as a fraction.

How do you turn 1.454 repeating into a fraction?

Detailed Answer:

Step 1: To convert 1.454 repeating into a fraction, begin writing this simple equation:

n = 1.454 (equation 1)

Step 2: Notice that there are 2 digits in the repeating block (54) and 1 digit in the non-repeating part (4). Multiply both sides by 10³ = 1000.

1000 × n = 1454.54 (equation 2)

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

1000 × n = 1454.54
  10 × n = 1.454
 990 × n = 1440

1440990 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 90 (the GCF - greatest common factor).

n = 1440990 = 1440 ÷ 90990 ÷ 90 = 1611. So,

1.454 = 1611 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 1611 is also equal to 1511 when expressed as a mixed number.

The repeating decimal 1.454 (vinculum notation) has a repeated block length of 2. It is also represented as 1.4545454... (ellipsis notation) which equals approximately 1.45454545454 (decimal approximation)(*).

The recurring decimal 1.454 can be written as a ratio of two integers having 16 as the numerator and 11 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.