Reduce `(21)/(35)` to the simplest form.

Reduce (288)/(392) to the simplest form using HCF of the numerator and denominator. Find the HCF by prime factorisation method

Reduce (84)/(98) to the simplest form.

Reduce (96)/( 128) to its simplest form.

Reduce (264)/(408) to simplest form using HCF of the numerator and denominator

Reduce 480//840 to its simplest form.

Is (169)/(289) in its simplest form?