Question

a fraction is said to be in its dash in the HCF of the numerator and denominator is 1​

Answer 1

Fraction in lowest terms is discussed here. If numerator and denominator of a fraction have no common factor other than 1(one), then the fraction is said to be in its simple form or in lowest term. In other words, a fraction is in its lowest terms or in lowest form, if the HCF of its numerator and denominator is 1.

Answer 2

Answer:

in its simplest form or in its lowest form