first you do the prime factorization 65 and 91.Then with the answers you get idk wat to do with them sry
68
First reduce the fraction to its simplest form. If the denominator has any prime factor other than 2 or 5 then it is a repeating decimal. Otherwise it terminates.
Factor trees and factor rainbows.
Since prime numbers only have one prime factor (themselves), factor trees are unnecessary.
A factor rainbow is a method to determine a prime factorization.
It is called simplification.
The fraction 85/130 will reduce by a factor of 5 to 17/26and because 17 is prime and will not divide into 26, that is as simple as it gets.
No, prime refers to whole numbers. In the situation you describe, a fraction is in its simplest form.
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).
When they have no factor in common, or their HCF is 1.
3 is a prime number. Prime numbers don't have factor trees. The factors of 3 are 1 and 3.
Since the numerator of the fraction is prime, and not a prime factor of the denominator, the proper fraction 13/69 is already expressed in its simplest form.