Question

​Write the least (smallest) rationalising factor
of:
(1) √12
(ii) √18
(iii) 2√12
(iv) 1/√5
(v)√2/3​

Answer 1

(i)√12

(ii) √18

(iii) 2√12

= √2×12

=√24

(iv) 1√5

=√1×5

=√5

(v) √2/3