Alyssa said that 6/8 and 9/12 are not equivalent because there is no whole number you can multiply both part of 6/8 by to get 9/12. is this correct

Solution: Alyssa is incorrect.

In fact .

If we cross-multiply the above equation, we have:

Therefore, they are equal.

Also, if we reduce the given fractions, we have:

And

Since both the fractions reduced to , therefore fractions are equivalent.