Question

What is this I have been on it fourever ​

Answer 1

`(3)/(4)` =
`(9)/(12)`

Explanation:

The values are in proportion if the right side is a multiple of the left side

Consider

`(3)/(4)` ×
`(3)/(3)`

=
`(3(3))/(4(3))`

=
`(9)/(12)`

Thus
`(3)/(4)` and
`(9)/(12)` are in proportion

This does not happen for any of the other three.