$var1.part1/ns0:number $var2.part1/ns0:number $var1.part1/ns0:numberWithZeroFraction $var2.part1/ns0:numberWithZeroFraction $var1.part1/ns0:numberWithFraction $var2.part1/ns0:numberWithFraction ( $var1.part1/ns0:number + 1 ) $var2.part1/ns0:numberAddition ( $var1.part1/ns0:numberWithZeroFraction + 1 ) $var2.part1/ns0:numberWithZeroFractionAddition ( $var1.part1/ns0:numberWithFraction + 0.5 ) $var2.part1/ns0:numberWithFractionAddition