What is 173.777... as a Fraction?

173.7 equals 15649 as a fraction.

How do you turn 173.7 repeating into a fraction?

Detailed Answer:

Step 1: To convert 173.7 repeating into a fraction, begin writing this simple equation:

n = 173.7 (equation 1)

Step 2: Notice that there is 1 digit in the repeating block (7), so multiply both sides by 10¹ = 10.

10 × n = 1737.7 (equation 2)

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

10 × n = 1737.7
 1 × n = 173.7
 9 × n = 1564

n = 15649 (answer)

173.7 = 15649 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 15649 is also equal to 17379 when expressed as a mixed number.

The repeating decimal 173.7 (vinculum notation) has a repeated block length of 1. It is also represented as 173.777... (ellipsis notation) which equals approximately 173.77777 (decimal approximation)(*).

The recurring decimal 173.7 can be written as a ratio of two integers having 1564 as the numerator and 9 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.