Over 2 3/4 = 1/2 of your bet on the over 2.5 and 1/2 of your bet on the over 3
Over 2 1/4 = 1/2 of your bet on the over 2 and 1/2 of your bet on the over 2.5
if you have any totals that end in 1/4 ; you can always know that half of your bet will be rounded down.. so if you have 2 1/4; half will always be on 2 and half on 2.5...
if you have any totals that end in 3/4; you can always round up for your totals.. if you have 2 3/4; half will always be on 2.5 and half on 3