The fraction fiveeighths (5/8) is the decimal 0.625. This answer is found by either using a calculator or dividing five by eight through long division.
However, to convert from fractions to decimals, there is a different method. The denominator of the fraction is multiplied by a number that gives the result as 10, 100, 1,000 or another multiple of 10. For the fraction fiveeighths (5/8), the denominator is 8. Multiplying 8 by 125 gives 1,000. To find the answer as the decimal 0.625, multiply both the numerator and denominator by 125 to find 625/1000. In the decimal system, the third digit after the decimal point is the thousandth place, so 625/1000 is the same as 0.625.
8.5 is a decimal.
http://wiki.answers.com/Q/What_is_8_.5_in_a_decima...

.625 is the answer.
http://www.chacha.com/question/whatis5%26%2347%3...

1.375
http://wiki.answers.com/Q/What_is_11_over_8_as_a_d...

0.125.
http://wiki.answers.com/Q/What_is_the_decimal_of_1...
