Multiply and reduce to lowest form (if possible) :
(i) (ii)
(iii)
(iv) (v)
(vi)
(vii)
(i) We have,
× 2
= ×
=
= 1
(ii) We have,
×
(iii) We have,
×
(iv) We have,
×
=
= 1
(v) We have,
×
=
(vi) We have,
×
=
= 1
(vii) We have,
×
=
= 1