WHAT IS THE DIFFERENCE BETWEEN FRACTION AND DECIMAL ODDS?
Online betting site odds are shown in either the traditional format ½ or decimal 1.5. Most UK on-line bookmakers keep with the traditional format by default when expressing betting odds 1/2, 11/8 etc, however other companies like betfair.com using the decimal format 1.5, 2.38 so look for an option to set this to decimal on their respective site as it is the decimal figure that we use for the calculations on our spreadsheet. If however you do need to calculate it yourself, the way to change fractional odds into decimal odds is to divide and add one, e.g. 10/1 + 1 = 11.00, therefore, fractional odds 10/1 becomes decimal odds 11.00.
