Explanation:
you can simply multiply things out.
4/9 × y = 8/3
4y = 9×8/3 = 3×8 = 24
y = 6
or you could have transformed the right hand side into a fraction of the same denominator (9) :
8/3 = 8/3 × 3/3 = (8×3)/(3×3) = 24/9
4/9 × y = 24/9
that means 4y = 24
y = 6