Check if there are no common factors between the numerator and the denominator.
Four twentieths in simplest form is one quarter
16
4 is already in its simplest form.
It is in it's simplest form.
It is already in simplest form.
the simplest form of four over five is....four over five. You can't reduce that fraction because it already is in simplest form.
The simplest form for four thirds is one and one third.
4/5 is in its simplest form.
4/5 is in its simplest form.
4/135 is in its simplest form.
4/5 is in its simplest form.
4/9 is in its simplest form.