The answer depends on how many equal parts there are.
When a line divides another in two equal parts, it is called a bisector. If the bisector happens to cross the other line at right angles, it is called a perpendicular bisector.
square?
Equilateral triangle.
Rene Descarite
A book written in Arabic called " Al-jebr w'al-mugabalah" is where algebra got its name. The beginning of this name, Al-jebr, is obviously its origin and means "the reunion of broken parts".
Twelfths.
Each part is a twelfth.
The denominator.
Numerator
This is the denominator, which is the bottom line of the fraction.
In its simplified form, there is no such number.
the fraction name is 9/17 or nine over seventeenths.
Hemispheres
I'm not exactly sure what you mean, but the top number is called the numerator and the bottom number is called the denominator.
Another name for 'rational' is "numbers that are equal to the ratio of two whole numbers". Another name for 'irrational' is "numbers that are not equal to the ratio of any two whole numbers".
denominator
synergy.