The fraction is said to be in its simplest form.
Yes, if the denominator is a multiple of the numerator. No, if not.
2/2
simplest form
It is 2/3.
Yes. If the numerator and denominator of a fraction are prime, the fraction is in simplest form. The reason is that each number has only two factors, 1 and the number itself. For that reason, it is not possible for the numerator and denominator to have any factors (other than 1) in common.
The top number of a fraction is the numerator. The bottom number is the denominator. In the fraction 1/5, the number 1 is the numerator, and the number 5 is the denominator.
A fraction in which the numerator and denominator are co-prime.
If the numerator and denominator are prime numbers and not equal then they don't have common factors (except 1 which would be a common factor even if the numerator and denominator were prime numbers).
2/3
When the numerator and denominator are not co-prime.
No. To simplify a fraction the numerator and denominator must have a common factor greater than 1.
You put a fraction in simplest form by dividing the numerator and denominator by their greatest common factor. If the either the numerator or denominator is a prime number, the fraction cannot be simplified.