Question

Do 20/32 and 12/20 form a proportion?

Answer 1

No.

Explanation:

`20/32` can be written as `(cancel4*5)/(cancel4*8)=5/8`
And that is its simplest form.

`12/20=(3*cancel4)/(cancel4*5)=3/5`
And that's the simplest form of that one.
Since these are not equal, they are not in proportion.