A reducible fraction is a fraction 
such that 
, i.e., 
can be written in reduced form. A fraction that is not reducible
is said to be irreducible.
For example, in the complex plane, 
is reducible, while 
is not.
Reducible Fraction
See also
Fraction, Improper Fraction, Irreducible Fraction, Reduced FractionExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Reducible Fraction." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/ReducibleFraction.html