_{(i) We have,}

2

= ×

=

_{(ii) We have,}

5

= ×

=

(iii) _{We have,}

7

= ×

=

(iv) _{We have,}

4 3

= 3

= ×

=

(v) We have,

3 4

= 4

= ×

=

(vi) We have,

4 7

= 7

= ×

=