Fractional odds are most commonly used in the UK and Ireland with the majority of UK betting sites using them to express the probability of an outcome.
Betting sites will use fractional odds to indicate the chances of something occurring and are most commonly displayed as two numbers separated by a slash.
Examples of fractional odds – 5/4, 6/5, 10/11 and 25/1
Although some fractional odds can be extremely straightforward (2/1), others require a little more brain power in order to calculate your sports betting returns (10/3).
Luckily, punters can use one of the many fractional odds calculators available online in order to work out how much they will receive for a winning selection.
Evens (2.00) is often commonly displayed as 1/1 in fractional odds betting. Odds-on selections will have the higher number of the right (eg 4/5), whereas Odds-against selection will display the higher number of the left-hand side (eg 6/4)