# Uses of Class
org.apache.commons.math3.fraction.Fraction

Packages that use Fraction
Package
Description
org.apache.commons.math3.fraction
Fraction number type and fraction number formatting.
org.apache.commons.math3.linear
Linear algebra support.

## Uses of Fraction in org.apache.commons.math3.fraction

Fields in org.apache.commons.math3.fraction declared as Fraction
Modifier and Type
Field
Description
`static final Fraction`
Fraction.`FOUR_FIFTHS`
A fraction representing "4/5".
`static final Fraction`
Fraction.`MINUS_ONE`
A fraction representing "-1 / 1".
`static final Fraction`
Fraction.`ONE`
A fraction representing "1".
`static final Fraction`
Fraction.`ONE_FIFTH`
A fraction representing "1/5".
`static final Fraction`
Fraction.`ONE_HALF`
A fraction representing "1/2".
`static final Fraction`
Fraction.`ONE_QUARTER`
A fraction representing "1/4".
`static final Fraction`
Fraction.`ONE_THIRD`
A fraction representing "1/3".
`static final Fraction`
Fraction.`THREE_FIFTHS`
A fraction representing "3/5".
`static final Fraction`
Fraction.`THREE_QUARTERS`
A fraction representing "3/4".
`static final Fraction`
Fraction.`TWO`
A fraction representing "2 / 1".
`static final Fraction`
Fraction.`TWO_FIFTHS`
A fraction representing "2/5".
`static final Fraction`
Fraction.`TWO_QUARTERS`
A fraction representing "2/4".
`static final Fraction`
Fraction.`TWO_THIRDS`
A fraction representing "2/3".
`static final Fraction`
Fraction.`ZERO`
A fraction representing "0".
Methods in org.apache.commons.math3.fraction that return Fraction
Modifier and Type
Method
Description
`Fraction`
Fraction.`abs()`
Returns the absolute value of this fraction.
`Fraction`
Fraction.`add(int i)`
Add an integer to the fraction.
`Fraction`
Fraction.`add(Fraction fraction)`
Adds the value of this fraction to another, returning the result in reduced form.
`Fraction`
Fraction.`divide(int i)`
Divide the fraction by an integer.
`Fraction`
Fraction.`divide(Fraction fraction)`
Divide the value of this fraction by another.
`Fraction`
FractionField.`getOne()`
Get the multiplicative identity of the field.
`static Fraction`
Fraction.`getReducedFraction(int numerator, int denominator)`
Creates a `Fraction` instance with the 2 parts of a fraction Y/Z.
`Fraction`
FractionField.`getZero()`
Get the additive identity of the field.
`Fraction`
Fraction.`multiply(int i)`
Multiply the fraction by an integer.
`Fraction`
Fraction.`multiply(Fraction fraction)`
Multiplies the value of this fraction by another, returning the result in reduced form.
`Fraction`
Fraction.`negate()`
Return the additive inverse of this fraction.
`Fraction`
FractionFormat.`parse(String source)`
Parses a string to produce a `Fraction` object.
`Fraction`
FractionFormat.`parse(String source, ParsePosition pos)`
Parses a string to produce a `Fraction` object.
`Fraction`
ProperFractionFormat.`parse(String source, ParsePosition pos)`
Parses a string to produce a `Fraction` object.
`Fraction`
Fraction.`reciprocal()`
Return the multiplicative inverse of this fraction.
`Fraction`
Fraction.`subtract(int i)`
Subtract an integer from the fraction.
`Fraction`
Fraction.`subtract(Fraction fraction)`
Subtracts the value of another fraction from the value of this one, returning the result in reduced form.
Methods in org.apache.commons.math3.fraction that return types with arguments of type Fraction
Modifier and Type
Method
Description
`Class<? extends FieldElement<Fraction>>`
FractionField.`getRuntimeClass()`
Returns the runtime class of the FieldElement.
Methods in org.apache.commons.math3.fraction with parameters of type Fraction
Modifier and Type
Method
Description
`Fraction`
Fraction.`add(Fraction fraction)`
Adds the value of this fraction to another, returning the result in reduced form.
`int`
Fraction.`compareTo(Fraction object)`
Compares this object to another based on size.
`Fraction`
Fraction.`divide(Fraction fraction)`
Divide the value of this fraction by another.
`StringBuffer`
FractionFormat.`format(Fraction fraction, StringBuffer toAppendTo, FieldPosition pos)`
Formats a `Fraction` object to produce a string.
`StringBuffer`
ProperFractionFormat.`format(Fraction fraction, StringBuffer toAppendTo, FieldPosition pos)`
Formats a `Fraction` object to produce a string.
`static String`
FractionFormat.`formatFraction(Fraction f)`
This static method calls formatFraction() on a default instance of FractionFormat.
`Fraction`
Fraction.`multiply(Fraction fraction)`
Multiplies the value of this fraction by another, returning the result in reduced form.
`Fraction`
Fraction.`subtract(Fraction fraction)`
Subtracts the value of another fraction from the value of this one, returning the result in reduced form.

## Uses of Fraction in org.apache.commons.math3.linear

Method parameters in org.apache.commons.math3.linear with type arguments of type Fraction
Modifier and Type
Method
Description
`static Array2DRowRealMatrix`
MatrixUtils.`fractionMatrixToRealMatrix(FieldMatrix<Fraction> m)`
Convert a `FieldMatrix`/`Fraction` matrix to a `RealMatrix`.