how do sports betting odds work

For fractional odds, the equation is denominator/ (denominator + numerator) x 100. So, if a horse is 7/2, the equation would be 2/ (7 + 2) x 100. Since this equals 22.22, a horse that is 7/2 has an implied win probability of 22.22%. Decimal odds: Decimal odds are simple to calculate. The equation is (1/odds) x 100. sports posters