when i complie this it doesnt work why can someone explain ?

it says "unknown type name 'Fractiontype' "

PractionType FractionType : operator+(const FractionTypeb addend){ Fraction Type frac; (b*d)/a + (b+d)/c + b d bed frac.denominator - denominator addend.denominator; frac. numerator - (frac.denominator / denominator ) *numerator + (frac.denominator / addend.denominator)*addend. numerator; return frae; > Fractiontype Fractiontype: : operator-(const Practiontypea subtrat) Praction Type frac; (b*d)/a - (bid)/c bud frac.denominator - denominator . subtrat.denominator; frac.numerator = (frac.denominator / denominator) numerator - (frac.denominator / subtrat.denominator) subtrat.numerator; return frac; > Fraction type Fractiontype! :operator (const Fractiontypes multiplier) Fractiontype frac: a C b bed frac.denominator - denominator multiplier.denominator; frac. numerator numerator * multiplier.numerator; return frac; > Practiontype Fractiontyper operator/(const Fractiontypes divider) FractionType frac; ---/ --- b d bec frac.denominator - denominator . divider.nunerator; frac.numerator numerator divider.denominator return fraci PractionType FractionType : operator+(const FractionTypeb addend){ Fraction Type frac; (b*d)/a + (b+d)/c + b d bed frac.denominator - denominator addend.denominator; frac. numerator - (frac.denominator / denominator ) *numerator + (frac.denominator / addend.denominator)*addend. numerator; return frae; > Fractiontype Fractiontype: : operator-(const Practiontypea subtrat) Praction Type frac; (b*d)/a - (bid)/c bud frac.denominator - denominator . subtrat.denominator; frac.numerator = (frac.denominator / denominator) numerator - (frac.denominator / subtrat.denominator) subtrat.numerator; return frac; > Fraction type Fractiontype! :operator (const Fractiontypes multiplier) Fractiontype frac: a C b bed frac.denominator - denominator multiplier.denominator; frac. numerator numerator * multiplier.numerator; return frac; > Practiontype Fractiontyper operator/(const Fractiontypes divider) FractionType frac; ---/ --- b d bec frac.denominator - denominator . divider.nunerator; frac.numerator numerator divider.denominator return fraci