8/10 is equivalent to 4/5 because if you multiply the numerator and denominator by 2 you will get 8/10. 1/2 is not equivalent to 7/12 because if you multiply the numerator and denominator 6 you will get 6/12 and not 7/12. 3/4 is not equivalent to 8/12. 2/3 is equivalent to 4/6. I hope this helped you
