Question

What is 9/11=?/22 if it was a whole number?

Answer 1

The question mark will be 18 as
the denominator x 2 (11 x 2 = 22) so 9 x 2 = 18
Hope I've helped.

Answer 2

`?=x\\\\(9)/(11)=(x)/(22)\ \ \ |it's\ a\ proportion\ \ \ |cross\ multiply\\\\11\cdot x=9\cdot22\ \ \ \ |divide\ both\ sides\ by\ 11\\\\x=(9\cdot\\ot22^2)/(\\ot11_1)\\\\x=(9\cdot2)/(1)\\\\\boxed{x=18}`