What is 45.14555... as a Fraction?

45.145 equals 40631900 as a fraction.

How do you turn 45.145 repeating into a fraction?

Detailed Answer:

Step 1: To convert 45.145 repeating into a fraction, begin writing this simple equation:

n = 45.145 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (5) and 2 digits in the non-repeating part (14). Multiply both sides by 10³ = 1000.

1000 × n = 45145.5 (equation 2)

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

1000 × n = 45145.5
 100 × n = 45.145
 900 × n = 40631

n = 40631900 (answer)

45.145 = 40631900 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 40631900 is also equal to 45131900 when expressed as a mixed number.

The repeating decimal 45.145 (vinculum notation) has a repeated block length of 1. It is also represented as 45.14555... (ellipsis notation) which equals approximately 45.1455555 (decimal approximation)(*).

The recurring decimal 45.145 can be written as a ratio of two integers having 40631 as the numerator and 900 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.