Question

What is equal to 2/3

Answer 1

There are infinitely many values which are equal to 2/3.  You can multiply it by any real fraction which is equal to one, ie 2/2, 3/3, π/π, √2/√2 for examples which would give you:

4/6, 6/9, 2π/3π, 2√2/(3√2), √(8/18)