The fraction is in its simplest form.
A fraction in simplest form is one in which the only common factor of the numerator and denominator is 1.
simplest form
We say it's in its simplest form or lowest terms.
They are called like or similar fractions.
It is called a common factor!
It is finding an equivalent fraction.
That's known as the common denominator.
GCF
A common factor is an integer that divides evenly into two or more given numbers with no remainder.
finding the least common denominator formula
It is called the greatest common factor - not surprisingly!
If you apply it to the denominators, you could call it the least common denominator.